approximately when did the first plants and Arthropods appear on land

Answers

Answer 1

the first plants and anthropodes appear on land approximately about 470 million years ago

Answer 2

Answer: The first plants and arthropods appeared on land approximately 444 Ma.

Explanation:


Related Questions

while hiking in a rural area, you encounter a wetland and conclude that it’s a swap. which feature helped you reach this conclusion? A. it’s located near a lake. B. it’s located near the coast. C. it contains a number of carnivorous plants. D. it contains a variety of trees and shrubs

Answers

Answer:

A. it’s located near a lake.

Answer:

The feature that the wetland contains a variety of trees and shrubs can be relied upon to conclude that the wetland is a swamp.

Explanation:

There are "two" major types of wetlands, viz. marshes, and swamps. The marshes are characterized by the presence of stunted grasses, reeds, sedges, and rushes.On the other hand, the swamps are characterized by the "presence of woody plants, large trees, and considerably big shrubs". The swamps are deeper than the marshes.

which of the three nations-japan,china,or india is located farthest south​

Answers

Answer:

India

Explanation:

India is located under China and Japan is Located next to China

India is located farther south. Hope this helps! Please mark brainiest! :))

which is the largest fresh water lake in india ???

Answers

Hello there i hope you are having a good day :) Question : which is the largest fresh water lake in India ? = The answer should be Shivaji Sagar is the largest artificial freshwater lake in India and is located in Maharashtra. It has a above surface area of 891.78 km 2 (344 sq mi) and depth of  80 m (260 ft) making it a the largest fresh water lake in India this has over water in Shivaji Sagar 2,797,400,000 cubic meters.

Hopefully this helps you.

Where does stress build up and eventually release within a fault? 

      A. Seismic belts  B. Seismogenic zone  C. Epicenter  D. Hypocenter ​

Answers

Answer is D. Hypocenter
D.Hypocenter is the answer

Which plate boundary and movement commonly create ridges, like the Mid-Atlantic Oceanic Ridge? Explain how ridges can be created by plate tectonics.

Answers

Answer: A constructive plate boundary creates ridges

Explanation: A constructive plate boundary, sometimes called a divergent plate margin, occurs when two tectonic plates move apart. Volcanoes are formed as magma wells up to fill the gap and molten rocks from the mantle below spread out and harden, eventually forming a ridge of new land/rock. The Mid-Atlantic ridge is an example of a constructive plate boundary.

Hope this helped x

Divergent boundaries because I just know and because that’s how it opens

PLEASE PLEASE HELP ME OUT GUYS........​

Answers

/////////////////////////////////////////////////c

Soil erosion took place in the region due to the mudslide owing to the reception of excessive rains.

What is soil erosion?

Soil erosion is a condition where the soil loses its fertility and becomes unsuitable for agriculture and other cultivation activities. It takes place due to natural as well as man-made factors.

Natural calamities like excessive rains lead to mudslides in hilly regions and may lead to soil erosion.

Hence, option B holds true of the soil erosion in the image above.

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what is independence of latin american countries

Answers

Answer:After three centuries of colonial rule, independence came rather suddenly to most of Spanish and Portuguese America. Between 1808 and 1826 all of Latin America except the Spanish colonies of Cuba and Puerto Rico slipped out of the hands of the Iberian powers who had ruled the region since the conquest.

give on example of a housecleaning task that needs to be done seasonally

Answers

Examples of what to clean seasonally

In bedrooms: vacuuming mattresses, cleaning out the closet and dressers

In kitchen: deep cleaning the fridge and freezer

living room: cleaning the windows inside and out, clean out fireplace and chimney

Bathroom: Apply tile and grout cleaner

Using the map, which term BEST explains the spread of many religions throughout Southeast Asia? A) transfusions B) colonization c) culture diffusion D) independent innovation

Answers

Answer:

c) culture diffusion

Explanation:

As can be seen from the map the influence of the cultural diffusion takes place at a much faster levels and is thus a means to quickly spread the ideas and the thoughts and the cultural religion of the pole to the masses and thus can be seen by the spread of the Islamic culture in the Indonesia and that of the various smaller islands and covers most of the pacific ocean in the southeastern Asia.

3. Which geological principle accounts for the tilting of the layers in the sedimentary rock shown in the image? A. Principle of original horizontality B. Principle of superposition C. Principle of faunal succession D. Principle of inclusions

Answers

Answer:

A. Principle of original horizontality

Explanation:

The principle of original horizontality provides explanation to the way sedimentary rocks are laid in basins of deposition.

The principle emphasizes that sedimentary rocks are originally laid down horizontally in basins of deposition. If we see a tilted rock pattern or any other geometry in rocks, we can attribute it to tectonic activities that must have disturbed the sequence of strata in that area after the deposition and formation of the sedimentary rock.

Answer:

A

Explanation:

Principle of original horizontality is the geological principle which accounts for the tilting of the layers in sedimentary rock.

Describe four expected impacts of global warming.

Answers

Many impacts can be  brought by global warming, here I would introduce two impact each on the aspect on ecosystem and agriculture.

On ecosystem:

1. Shift in distribution of plants:

The changes in climate brought by global warming will alter the natural distribution limits for vegetation. For example, forests are moving north into the ;and that was once Arctic tundra, while the growing season increased in northern high latitudes.

2. Extinction or endangerment of species

Species may not be able to cope with climate change unlike human, hence intolerance of the increasing temperature may led to the extinction of spices. For example, coral reef cannot survive under temperature over 30 degree Celsius hence facing the danger of extinction.

On agriculture:

3.Farm production lowered

A warmer climate would lead to a loss of soil moisture hence increasing the erosion rate, and the dry soil will lower the land productivity as crops cannot grow on these barren land, especially water thirsty crops such as rice.

4.Farm production destroyed

Pests may become more active given the shorter and warmer winter, while floods may be present more often given the rapidly rising sea level and the instability of the climate.

Hope it helps!

Final answer:

Global warming is expected to have impacts such as rising sea levels, extreme weather events, shifts in ecosystems, and changes in food production.

Explanation:

Global warming is expected to have several impacts on the planet. Four of these impacts include:

Rising sea levels: As glaciers and polar ice sheets melt, the volume of water in the oceans increases, leading to higher sea levels. This can result in coastal flooding and the loss of coastal ecosystems and human communities. Extreme weather events: Global warming is causing greater frequency and severity of extreme weather events such as hurricanes, droughts, and heatwaves. These events can lead to property damage, loss of life, and displacement of people. Shifts in ecosystems: Terrestrial plant and animal ranges are expected to shift towards the poles due to changes in temperature and climate. This can result in the disruption of natural habitats and loss of biodiversity. Food production changes: Changes in temperature and precipitation patterns can affect agricultural production. Some regions may experience reduced crop yields, leading to food shortages and increased food prices.

What is the value of x? Round the answer to the nearest tenth. The diagram is not drawn to scale.
two triangles inside circle
A. 30
B. 60
C. 120
D. 240

Answers

The value of x  rounded to the nearest tenth is: B. 60.

Value of x

Given:

DC = AB

hence:

ΔPCD and ΔPBA

Radius of the same circle=PD = PA

Radius of the same circle=PC = PB

SSS congruency property of triangles:

ΔPCD = ΔPBA

CPCT  as a property of two congruent triangles

m∠CPD = m∠BPA = 60°

x = 60°

Therefore the correct option is B.

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there are over 56000 earthquakes recorded yearly on earth

Answers

Answer:

yes

Explanation:

Easter island is know for it’s __

Answers

Answer:

Giant Stone Heads

Explanation:

what tests were able to determine when continental crust was formed

Answers

Potassium-argon dating and half-life isotopes are the test undergone to determine the formation of continental crust.

Explanation:

Continental crust is formed from the rocks layers such as sedimentary, igneous, and metamorphic which forms the continent.  

Potassium-argon dating is a method that is used for the determination of the origin time of rocks through the measurement of the argon and potassium ratio that are radioactive in the rock.  

A half-life method describes the decay of radioactive atoms which is discrete entity.  

Answer:

Potassium–Argon Dating Method

Explanation:

Potassium-Argon Dating Method is a type of radioactive dating method which is that is mostly used in order to determine the time of formation of rocks by calculating the ratio between the radioactive- Ar to radioactive-K that is present in the rock. This method is dependent on the rate at which the radioactive K-40 decays over a due course of time, and completely changes into a stable element i.e radioactive Ar-40.

The half-life of K-40 is approximately 1.3 billion years old. This means that K-40 requires 1.3 billion years in order to decay half of its initial composition.

This method is very efficient in determining the age of the continental crust as the radioactive potassium-40 is commonly found to be present in the minerals such as in feldspar, mica, and hornblende within the continental rocks.

The highest mountain peak of Oceania is

A. Mt. Victoria, Papua New Guinea
B. Mt. Kosciusko, Australia
C. Mt. Cook, South Island (New Zealand)
D. Puncak Jaya, Indonesia.

The largest city in Latin America is

A. Mexico city
B. Caracas
C. Rio-de-Janeiro
D. Buenos Aires

Answers

Answer:

1:  D.  Puncak Jaya, Indonesia

2:  A.  Mexico City

Explanation:

Final answer:

The highest mountain peak in Oceania is Puncak Jaya in Indonesia, and the largest city in Latin America is Mexico City.

Explanation:

The highest mountain peak of Oceania is Puncak Jaya, also known as Carstensz Pyramid, which is located in Indonesia.

With an elevation of 16,024 feet (4,884 meters), Puncak Jaya is the tallest peak in Oceania and is part of the Sudirman Range of the western central highlands of Papua Province.

It is higher than Mt. Victoria in Papua New Guinea, Mt. Kosciusko in Australia, and Mt. Cook in New Zealand.

As for the largest city in Latin America, the correct answer is Mexico City which is the capital of Mexico.
Mexico City is one of the most populous cities in the world and the most populous city in North America.

At 1,312 feet below sea level, the
is the lowest point on the Earth's surface.

Answers

The correct answer is the “Mariana Trench”

The Dead Sea is 1312 feet below sea level.

A head of __________ directly manages a country by making decisions and wielding power

Answers

State. It is a head of state

Gabriella's business hasn't been doing well. She has a retail store where she is selling dog treats, baby clothes, and high-end athletic shoes. When people walk by her store, they're unsure of what she is selling. Based on the information provided, why might Gabriella be having difficulty?

Answers

Answer: Gabriella needs to focus on one product or one realm of products so people will know what she sells.

Answer:

Gabriella is having problems with her business because she does not specify her market area. That is, she does not specifically target a product or group of products, but sells different products that have nothing to do with each other. Therefore, buyers prefer to buy in specialized places in the same branch of products; For example, Gabriella sells high end athletic shoes, but does not accompany this product with other sporting goods. If instead of selling baby clothes, she sold sportswear, Gabriella would attract a greater number of customers willing to specifically buy sportswear, while offering complementary products capable of maximizing her sales.

What is the north-south split in terms of development

Answers

Answer:

The North-South split (or Rich-poor split/divide) refers to the fact that most industrialized countries are in the Northern hemisphere (think Europe and Canada/USA), while the Southern hemisphere is almost exclusively countries in development (some minor exceptions with Australia and NZ or course).

That is mostly due to the colonies established by the European countries a few centuries ago all over the world.

Describe the motions of North America from the Ordovician to the Tertiary.

Answers

The continental masses have been on the planet's surface ever since they formed, and that has been the case with the North American continental mass as well. In the time period between the Ordovician and Tertiary, the North American plate has been moving a lot, and it has changed its location and motion constantly. At the beginning of the Ordovician, the North American plate has been located around the Equator. It has remained at the low latitudes for quite some time, though it has constantly be moving toward east, or west, slightly north, or slightly south, kind of like in a circular movement. Then with the breakup of Pangaea, North America has started to move towards north, being close to the prime meridian. After that it continued to move toward west and then north west, gradually coming into the location that it has nowadays, which is also roughly the location it had at the end of the Tertiary.

which of the following environmental issues is of most immediate concern to policy-makers in New England?
A) overharvesting of bredding stock by commercial fishers
B) oil-spill liability
C) desertification by overgrazing of cattle
D) intensification of urban heat islands
E) Generation of electric power by wind

Answers

Answer:

The environmental issue of desertification by overgrazing of cattle is of most immediate concern to policy-makers in New England.

Explanation:

The soils in the New England region are known to be extremely thin and rocky. The covers of grasses and shrubs in this region had never allowed the intensity of the problem of thin soils to be felt. But lately, due to overgrazing of cattle, the thin layers of soil in this region have become vulnerable to wind and water erosion. This has given rise to the possibility of the desertification of the region.

Nuclear proliferation is best described as __________. A. the growth of world nuclear stockpiles B. the destructive capabilities of nuclear weapons C. an increase in the number of nuclear power plants D. the spread of nuclear weapons and technology

Answers

The "spread of nuclear weapons and technology" is known as Nuclear Proliferation.

Answer: Option D

Explanation:

Nuclear proliferation is described as the spread of weapons , fissionable material, and nations that are not recognized as "Nuclear Weapon States" by the Treaty is known as the "Non-Proliferation Treaty or NPT" of Nuclear Weapons.

Proliferation is opposed by many nations due to fear of arise in nuclear warfare with nuclear weapons. This leads to de-stabilization of international or regional relations, or infringe upon the national sovereignty of states.

Answer:

D. the spread of nuclear weapons and technology

Explanation:

Nuclear proliferation is the spread of the nuclear weapons and the fissionable materials and the weapon applicable to technology.  Some states are hence recognized as the nuclear states as they have a nuclear proliferation strategies and countries like the India and the Pakistan North Korea and others are a part of this treaty. The treaty governs the safe use and the disposal of the nuclear waste and the atrial of the nuclear origin. Like the materials accountability, physical security, and the containment and the.surveillance.  This was made as to protect to use of the nuclear technology so as to stop the nuclear warfares from taking place.

What does a colony usually provide for its ruling country? check all that apply.

A. Inexpensive labor
B. A market for finished goods
C. Finished goods
D. Raw materials

Answers

Answer:

A. Inexpensive labor

B. A market for finished goods

D. Raw materials

Explanation:

The colonies have been of great benefit for the colonial powers. There are several reasons for that, with the main being the economic factor. The colonies were regions that were occupied, so the local population was suppressed and didn't had lot of rights, and the colonists were using the locals as a very cheap labor force. Also, the regions that were chosen to be colonies were regions that were rich in certain resources, so they provided the colonists with lot of raw materials for free. Once the raw materials were manufactured, the colonists were using the colonies as markets, and they were selling the finished goods to the locals, thus earning lot of money from it.

Answer:

A . inexpensive labor

B . A market for finished goods

D. Raw materials

Explanation:

Hope it helps :)

Why are invasive species dangerous to the environment? Check all that apply.
A. They outcompete native species for resources.
B. They compete for native mates and reproduce slowly. C. They cause harm to property that can cause economic loss.
D. They disrupt food chains.

Answers

Answer:

A

C

D

i just did it

Explanation:

What is a hurricane?
a tropical cyclone

a middle-latitude anticyclone

a middle-latitude cyclone

a tropical anticyclone

Answers

Answer: Tropical Cyclone

Explanation: A hurricane is a storm with a violent wind, in particular a tropical cyclone in the Caribbean.

-Hope this helped-

-The girl who loves Geography-

What are the three processes of the water cycle?

A) sun, ocean, and runoff

B) evaporation, condensation, and precipation

C) water vapor, droplets, and ice

D) evaporation, density, and clarity​

Answers

Answer:

B) Evaporation, Condensation, and Precipation

Australian farmers must rely heavily on _____ to cultivate their crops.

the Great Artesian Basin

irrigation

overflowing rivers

rainfall

Answers

Answer:

Australian farmers must rely heavily on overflowing rivers to cultivate their crops.

Explanation:

The Great Artesian Basin that most of Australia's agriculture is dependent on is a closed system and is subject to run out of water in a few more years depending upon how it is managed. There is frequent flooding in Australia during the summer months from November to April. If the water from these overflowing rivers is used by the Australian farmers to cultivate the crops, it would help in the conversation of other water resources and may help in decreasing the severity of the floods.

Lake Victoria is the huge reservoir of the new Aswan dam located on the Nile river

Answers

Answer:

NO

Explanation:

The Aswan dam is a rock filled dam located along River Nile and its reservoir forms lake Nasser.Construction works started in 1960 and was completed in 1968 with its commissioning in 1971.The total cost of this dam is estimated to reach $1 billion.The dam provides water for irrigation, power generation, navigation and for flood controlling. Lake Victoria is a lake in east Africa whose water is shared by mostly  Kenya and Uganda.The sources of river Nile are Blue Nile and white Nile.White Nile flows north through Lake Victoria which is reservoir of Owen Falls Dam in Uganda.

which word is the past particple form of run? Run Running ran runned​

Answers

Answer: Ran

Explanation:

For example say you said I ran a 5 mile race yesterday. That is in the past tense because you did it yesterday not today or no and not in the future but you did it yesterday. Hope that helped

The past participle form of 'run' is 'run'. Unlike regular verbs, 'run' is an irregular verb and does not add -d or -ed for its past tense and past participle forms.

The past participle form of the verb "run" is "run". Most English verbs form the past tense and past participle forms by simply adding -d or -ed to the end. However, "run" is an >, meaning its past tense and past participle forms don't follow the regular pattern. For example, the past tense of "run" is "ran", not "runned". Likewise, the past participle form is just "run", not "runned" or "running".

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