Identify what kind of population pyramid is shown below.

A. constrictive
B. expansive
C. stationary
D. irrelevant

Answer:

A) flat plateaus

Explanation:

    Plateaus are relief forms that have more or less flat surfaces and are usually bumpy and irregular. On its edges commonly appear flat top elevations, like saws. This type of relief is above 300 meters of sea level and can reach over 2000 meters in altitude.

We can classify the plateaus into three types:

Acid rain is a expression for the more scientific term, acid deposition, which refers many ways in which acidity can move from the atmosphere to Earth's surface. Acid deposition includes acidic rain as well as other forms of acidic wet deposition—such as snow, sleet, hail, and fog.

Sorry, this answer is late I hope this gets to another person from this question.

Acid deposition refers to all the types of precipitation namely acid rain, acid fog and acid mist that imply both dry and wet precipitation.

While  

Acid rain is defined as the rain or any other kind of precipitation that is acidic or it has a high level of hydrogen ion of low pH value.

Further Explanations:

Acid rain includes all types of precipitation with acidic content with a pH value less than 7. These types of precipitation are harmful for the aquatic animals and their infrastructure. Acid rain is the result of the reaction of Sulfur dioxide and Nitrogen oxide with water molecules present in the atmosphere. Efforts are being made by the government to reduce the emission of these gases for a positive result. Acid rain can be a result of a natural phenomenon also. Thunderstorms and lightning also produce Nitrogen oxide while Sulfur Dioxide is produced during the volcaniceruption. Both natural phenomenons are also responsible for acidic precipitation.

Acid deposition refers to all kinds of precipitation, smog, fog, and mist that have acidic content in it. Deposition can be dry or wet, but in all states, it is hazardous for the environment. The deposition generally hasa pH value of less than 4 and can have pH value as a minimum of 1.5.Sulphuric acid and Nitric acid are two components generally found in the deposition.

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Answer Details

Grade: High School

Subject:Geography

Chapter: Acid Rain

Keywords:Acid rain, pH value, aquatic animals, Sulfur dioxide, Nitrogen oxide, Thunderstorms, volcanic eruption, acidic precipitation, precipitation, smog, fog, and mist

The correct answer is - temperature.

We see the stars on the night sky in multiple colors, and the variation in the colors of the stars comes from the differences in temperature. The cooler a star is, the more reddish it appears, the hotter the star is the more blueish or whitish they appear. From cool to hot, the stars can appear in the variations of red, orange, yellow, green, blue/white colors, and it is an easy indicator of the temperature of them.

Answer:

Peak Wavelength

Explanation:

Stars appear to emit only one color (The one we see) but is not true, the stars emit light that varies from Ultra Violet radiation to Infrared Radiation, the visible color depends on the wavelength with the most intensity called Peak Wavelength, this wavelength depends entirely on the temperature of the star if the stars are blue the wavelength with most intensity is the Short wave ( Hotter) different from a Red star, which Wavelength would be longer (Colder).

Answer:

I have this on an open-book test so the person above me helped me . It was the Ozark Highlands! :)

Explanation:

Keywords are the significant words or phrases that define the topic of an essay question. A synonym on the other hand is a word or phrase that means exactly or nearly the same as another word or phrase

The statement that a synonym for a word may be included as a keyword is true, because using synonyms will get you a more complete set of search results.

Answer:

6 is actually thrust fault

It's not d guys I put that and got it wrong its C

The three major types of economic systems taught in this course are market, command, and traditional.

The three major types of economic systems taught in this course are Market, Command, and Traditional.

In a Market economic system, resources are owned and controlled by individuals and businesses, and decisions on what to produce, how much to produce, and at what price are influenced by supply and demand.

In a Command economic system, resources are owned and controlled by the government, and decisions on what to produce, how much to produce, and at what price are made by the government.

In a Traditional economic system, resources are allocated based on customs, traditions, and beliefs, and economic decisions are often influenced by cultural and societal norms.

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Answer:

b

Explanation:

The correct answer is your second option: Rainfall gradually diminished and areas that were once grassy and forested became deserts.

The climate and geography of North Africa changed significantly between 10,000 B.C. and 1000 B.C., with cooler temperatures and reduced rainfall leading to increased aridity and desert expansion.

Between 10,000 B.C. and 1000 B.C., the climate and geography of North Africa underwent significant changes. Cooler temperatures and reduced rainfall led to increased aridity and the expansion of deserts. Grassy and forested areas transformed into deserts as plant and animal communities shifted in response to the changing climate.

The most urgent problems for the US include fiscal difficulties, crowding in cities, aging pollution, and environmental challenges like air and water pollution, as well as the strain on healthcare systems due to an aging population, increased energy costs, and a lack of skilled labor.

The most pressing issues that the United States faces today revolve around a variety of socio-economic and environmental challenges. These include fiscal difficulties related to the costs of public services and infrastructure, crowding in urban areas leading to housing shortages and traffic congestion, and environmental concerns such as air and water pollution that threaten public health and ecological balance. Furthermore, the United States is coping with the implications of an aging population, which places a strain on pension systems and healthcare, particularly on programs like Medicare. Illegal immigration remains a contentious issue, affecting labor markets and public policy. The nation also confronts the issues of increasing energy costs and the challenge of securing sufficient energy supplies without exacerbating environmental issues such as global climate change and acid rain.

With the world's population 'graying', an increasingly pressing problem is the burden on social services and healthcare systems due to the rising number of older citizens. Another aspect that's impacting the labor market in the U.S. is the lack of skilled labor, which can hamper economic growth and technological advancement. Additionally, concerns over a potential shortage of natural resources further complicate long-term sustainability and economic stability.

Collectively, these factors outline a complex web of issues that require thoughtful and proactive policymaking to ensure societal well-being and environmental sustainability.

Answer:

A convection current is the flow of heat within a fluid.

The correct answer is - fee collection.

The privatization of the most valuable natural resources on the planet, the water, has led to fee collection for it. Because the water had become owned, the people and companies that have the ownership rights, are charging the people for the water that they are spending. Also, the fee collection goes for the specific water services as well, thus the people have been put into a situation to pay for the most basic mean of life, the one that means life, which is given by the nature.

Final answer:

In around 1000, Kievan Russia was at its largest, stretching across a considerable distance. It connected the Baltic Sea with the Black Sea and had trade links with Constantinople. Kievan Russia's territories eventually fragmented and Moscow emerged as a new center of power, leading to the establishment of modern-day Russia.

Explanation:

In around 1000, Kievan Russia was at its largest, stretching across a considerable distance. Although the exact length is not mentioned, we can infer that it was significant based on the historical context. Kievan Rus' was a confederation of city-states, with Kiev as its capital. It connected the Baltic Sea with the Black Sea and had trade links with Constantinople. Kievan Russia's territories eventually fragmented and Moscow emerged as a new center of power, leading to the establishment of modern-day Russia.

Answer:

TRUE

Explanation:

The correct answer is - D. Europe and Asia.

Eurasia is the geographic term used for Europe and Asia. This is because the two continents, are actually, by geographic terms, not two separate continents, but represent one whole because both of them lie on the same tectonic plate, the Eurasian tectonic plate. It is the only continent in the world that is divided because of political, cultural, religious, and racial reasons.

The geologic crosscut with five layers represents different types of rocks formed under different atmospheric conditions. The limestone layers indicate a time of abundant marine life, the banded-iron formations suggest an oxygen-poor atmosphere, the metamorphic rocks indicate geologic activity, the red beds suggest the presence of oxygen, and the chert layers suggest unique atmospheric conditions.

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The geologic cross-cut represents different types of rocks and their relation to the history of the Earth's atmosphere.

A: Limestone layers

B: Banded-iron formations

C: Metamorphic rocks with fine grains

D: Red beds

E: Chert layers

The presence of limestone layers in box A suggests that these rocks formed in a marine environment when the Earth's atmosphere had a higher concentration of carbon dioxide. Banded-iron formations in box B indicate the presence of a significant amount of dissolved iron in the oceans. Metamorphic rocks in box C formed as a result of intense heat and pressure, indicating that the Earth's atmosphere was undergoing tectonic activity. Red beds in box D suggest the presence of oxidized iron in terrestrial environments. Chert layers in box E indicate a deposition of silica-rich sediment, possibly in a shallow marine environment.

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Answer:

b. troposphere.

Explanation:

   The troposphere is the lowest layer of the earth's atmosphere, being the region in which we live and where meteorological phenomena occur.

   Its height varies with the point away from the surface. At the poles, for example, it reaches 7 km altitude and 16 km in the Ecuador region.

    It is in the troposphere that rain, lightning, clouds and air pollution occur.

    The meaning of troposphere comes from the Greek "tropos" and means change.

The chemical composition of the troposphere is as follows:

    Oxygen - 21%

    Argon - 0.9%

    Water vapor - 0.4%

    Carbon Dioxide - 0.04%

    The troposphere concentrates most of the water vapor from Earth's atmosphere. The amount of vapor results from the process of evaporation and transpiration of the earth's surface.

The Great Continental Divide, a major hydrological divide determining the direction of river flow, is located in North America.

The Great Continental Divide, also known as the Continental Divide of the Americas, is a geographical feature that can be found in North America. This major hydrological divide runs from the western coast of Alaska, down the length of the Rockies, and reaches into Mexico. Its primary significance is determining the direction of river flow in the continent. Water on the west side of the divide flows toward the Pacific Ocean, while on the east side it flows toward the Atlantic.

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