The correct answer is B!
Why is this?
A mineral is a naturally occurring, inorganic solid with a definite crystalline structure and chemical composition. All minerals contain one or more elements, which are pure substances that cannot be broken down into simpler substances by chemical means.
All solutions have limits on how much _________ will be dissolved in the ______.
A)
Solvent; solute
B)
Solute; solvent
C)
Solute; solution
D)
Solution; solvent
All solutions have limits on how much solute will be dissolved in the solvent. That is option B.
A solution is made up of two or more substances that suspended in a liquid medium.
The substances that are suspended or dissolved in the liquid medium is called solutes.
The substance which is usually liquid, but can be solid or gas, that dissolves that solute is called the solvent.
When a solution contains more solutes than it can dissolve, it becomes saturated.
When a solution contains less solutes than it can dissolve it becomes unsaturated.
Therefore, all solutions have limits on how much solute will be dissolved in the solvent.
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Number 4 what can I draw
How much times can 21 go into 700
Does NaCI have carbon
The mathematical chance that something will happen is known as
The numerical opportunity that something will happen is known as probability. It's a number between zero and one, with key principles such as the sum of all possible outcomes' probabilities equaling one. A typical example is the 50% chance of a coin toss resulting in heads.
The mathematical chance that something will happen is known as probability. It is expressed as a number between zero and one, where zero means the event is certain not to occur, and one indicates the event is certain to occur. Probability takes into account all possible outcomes of a particular event and the sum of their probabilities must equal one.
There are key principles to understand when calculating probability:
The list of outcomes must be complete and must not overlap.Outcomes that are certain to occur have a probability of 1, while those that are certain not to occur have a probability of 0.The total sum of the probabilities for all possible outcomes is 1.Probability can be demonstrated with classic examples like tossing a coin. If you toss a fair coin, the theoretical probability of landing on heads is 0.5 or 50%, since there are two possible outcomes: heads or tails, each equally likely to occur.
In rain forests the trees high in the canopy receive a large amount of direct sunlight. Plants that grow under the canopy receive less light. Why do plants that grow on the ground in rain forests have broad leaves?
A) The broad leaves store food.
B) The broad leaves help them survive the cold.
C) The broad leaves provide shelter for insects.
D) The broad leaves provide surface area to catch light.
Answer:
the answer is D
Explanation:
D) The broad leaves provide surface area to catch light.
What are rainforests?Rainforests are tropical forests that receive a high amount of rainfall, typically more than 200 cm per year. They are found in regions near the equator, where the climate is warm and humid. Rainforests are characterized by their dense canopy of tall trees, which can reach up to 60 meters in height. The high rainfall and warm temperatures create a rich and diverse ecosystem, with numerous plant and animal species living in the forest.
Rainforests are also known for their lush undergrowth, including shrubs, ferns, and vines. They play a critical role in the global climate, as they absorb and store large amounts of carbon dioxide, and are also important sources of oxygen. However, rainforests are facing severe threats from human activities such as deforestation and conversion of land for agriculture, which can lead to loss of biodiversity and other negative impacts on the environment.
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What adaptations would be found in leaves located in a desert, tropical rain forest, and aquatic environment?
Answer:
Succulent plants store water in fleshy leaves, stems or roots. Several other adaptations are essential for the water storing habit to be effective.
Explanation:
What makes the cell membrane selectively permeable?
The hydrophobic center to a cell membrane (also known as a phospholipid bilayer) gives the membrane selective permeability
A sedimentary rock containing a fern fossil has been found. What does this tell you about the area at the time the rock was formed
A the area was cold
B the area was hot
C the area was on land
D the area was covered by an ocean
The fern is a vascular plant that reproduces by producing spores. This plant produces no fruits or seeds. The ferns have complex leaves, and have true stems and roots. The presence of a fern fossil in a sedimentary rock indicates that the rock present on the land. The fern plants are found above the land, and this rock must have been present there for it to contain the fern fossil.
Hence, The correct answer is 'Option C - the area was on land'.
A sedimentary rock with a fern fossil indicates that the area was on land when the rock was formed, as ferns are terrestrial plants. The presence of terrestrial plant fossils provides clear evidence of past environmental conditions, distinguishing from marine fossils like oyster shells that suggest former oceanic environments.
Explanation:The discovery of a sedimentary rock containing a fern fossil tells us that the area where the rock was formed was likely on land. This inference is due to ferns being land-based plants; thus, their presence suggests that the region would have had to be above water for the ferns to grow and subsequently be fossilized. In comparison to marine fossils, such as oyster shells found in sedimentary environments indicating former ocean coverage, ferns unequivocally point towards a terrestrial habitat during the time the rock was formed.
Regarding temperature, while ferns can exist in a range of climates, the mere presence of a fern fossil does not provide definitive evidence of the climate being specifically hot or cold. Additionally, sedimentary rocks on Earth have been formed under various conditions, including volcanic activity, which contributes to the layers and composition of the Earth's surface. The key takeaway is that the fossilized fern indicates that the area had terrestrial features rather than being covered by an ocean.
Write a paragraph to explain to an adult what would happen to a vacant lot in your community if it were left alone for the next 25 years?
Pls halp
Under which of the following conditions is Lactic acid fermentation most likely occur?
A. A very fast run
B. A long walk
C. Sleeping
D. Playing video games
Lactic acid fermentation is most likely to occur during a very fast run, as the intense activity causes muscles to run out of oxygen and switch to fermentation to produce energy.
Explanation:Lactic acid fermentation is most likely to occur under conditions where the muscles have run out of oxygen and need to find an alternative way to produce energy. Among the options provided, A. A very fast run is the condition under which lactic acid fermentation is most likely to occur. When muscles are used to the point of fatigue, such as during an intense activity like a sprint, there isn't enough oxygen supplied to the tissues to meet the high energy demands. This causes the muscle cells to switch from aerobic respiration to lactic acid fermentation, a process where pyruvate is reduced to lactate by NADH, thus regenerating NAD+ which allows glycolysis to continue producing ATP.
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The relatively stable state of equilibrium that living systems maintain by regulating their metabolic processes is known as
Why is it that helpful that the new nutritional graphic is shaped like a table setting?
The new nutritional graphic, MyPlate, is designed like a table setting to provide a relatable and easy-to-understand guide for creating a balanced meal with appropriate proportions of food groups. It aligns with the USDA's recommended dietary guidelines and works in conjunction with nutrition facts labels to aid in healthy food selection.
Explanation:It is helpful that the new nutritional graphic is shaped like a table setting because it offers a simple and intuitive guide to healthy eating at each meal. The tool in question, MyPlate, developed by the United States Department of Agriculture (USDA), replaces the former MyPyramid and is a visual guide detailing the proportions of the five food groups: vegetables, fruits, grains, protein, and dairy. This format mimics an actual place setting, which makes it easier for individuals to relate the guidelines to their everyday meals. The design encourages the incorporation of healthy eating patterns by illustrating a balanced plate that contains a variety of food groups at appropriate proportions.
In practice, MyPlate communicates that half of the plate should be filled with fruits and vegetables, the other half should be grains and proteins—with a higher proportion of grains—and dairy products are represented by a drink but can include other dairy forms. Additionally, nutrition facts labels provide specific information about the nutrient content and ingredients of packaged foods, aiding individuals in making informed choices that align with nutritional guidelines. Together, MyPlate and nutrition facts labels are tools that support the public in understanding nutrient and energy density which is key to making healthier food choices.
What are the three ways in which an atom can form bonds with other atoms?
Answer:
Electrons can be transferred from one atom to another, via ionic bonding. Electrons can be shared between neighboring atoms, through covalent bonding. Electrons can be shared with all the atoms of a material in an uneven, but possible, sharing.Explanation:
As we know, atoms are the smallest particles of matter and represent the true creators of matter and everything that occupies space and has mass. Atoms are composed of electrons, protons and neutrals.
Electrons allow one atom to interact with another, forming bonds that allow something tangible to be created. This interaction can occur in three ways:
Electrons can be transferred from one atom to another, via ionic bonding. Electrons can be shared between neighboring atoms, through covalent bonding. Electrons can be shared with all the atoms of a material in an uneven, but possible, sharing.How might a scientist compare theories by doing an experiment?
A.
Make sure that the experiment is properly controlled.
B.
Do an experiment which could only apply to one of the theories.
C.
Check if the experiment gives the same results when it is repeated.
D.
See which theory does a better job of explaining the results of the experiment.
Answer:
The correct answer is option D. "See which theory does a better job of explaining the results of the experiment".
Explanation:
A theory is a well established supposition that explains a phenomenon observed in nature or in laboratory based on proved principles. A scientist could compare theories by doing an experiment to see which theory does a better job of explaining the results of the experiment. This helps to see which theory is accurate and getting closer to get a definitive explanation to the observed phenomenon.
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A cool fluid is more dense than a warm fluid.
True or False???
What determines the chemical properties and physical properties of a mineral?
A the arrangement of the mineral's atoms
B the specific gravity of the mineral
C the conditions under which the mineral formed
D the location where it was found
The chemical property as well as physical one is determined by the arrangement of the mineral's atoms. The correct option is A.
What are chemical properties?A chemical property is any property of a material that emerges during or after a chemical reaction.
That is, any quality that can only be established by changing a substance's chemical identity.
A physical property is a property of a substance that can be observed or measured without changing the substance's identity.
Color, density, hardness, and melting and boiling points are examples of physical properties.
The atomic structure and crystal chemistry of minerals determine their physical properties.
Crystal form, color, hardness, cleavage, and specific gravity are the most common physical properties.
Examining a mineral's crystal form is one of the best ways to identify it.
Thus, the correct option is A.
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At what temperature on Celsius scale does pure water freeze?
Which process requires the sperm and egg cells?
Asexual reproduction
Sexual reproduction
Mitosis
Cell division
Deep-ocean lantern fish have special organs that use chemical energy to produce light. However, the light can only travel a certain distance through the water before it is no longer visible. How does this phenomenon validate the Law of Conservation of Energy?
The fish is a closed system, so energy is allowed to exit the system.
The Law of Conservation of Energy applies to biological, not physical, systems.
The light energy travels through the water until it is reflected or absorbed.
The light is not carried by matter and contains no energy.
The correct answer is: The light energy travels through the water until it is reflected or absorbed.
Law of conservation of energy is defined as that states that light energy cannot be created or destroyed but converts from one form to another.
When deep ocean lantern fish produces light in water it travel along some distance and then comes back, the light travels in waves and when it hits water waves it either reflects back or absorbed.
What is the difference between a pure tall plant and a hybrid tall plant?
Answer:
The pure tall plant has equal alleles (AA or aa) while the hybrid tall plant has one dominant and recessive allele (Aa).
Explanation:
When we say that an organism is pure, we mean that it is homozygous. In this case we are saying that, for a given trait, its alleles are equal. This means that the allele is occurring in double dose in that organism and, consequently, the gametes generated by it will be equal. A pure tall plant has alleles equal to "AA" or "aa".
When we refer to hybrid organisms, we are referring to heterozygous organisms. In this case we are saying that, for a certain characteristic, the alleles are different. For this reason, in gametogenesis, it is possible to observe the presence of two distinct gametes. A hybrid tall plant has different "Aa" alleles.
UMMM who's good at science?!?!?!
What causes the convection cell to turn up at point A?
Which two structures would provide a positive identification of a plant cell under a microscope?
A, endoplasmic reticulum, chloroplasts
B, large central vacuole, flagelum
C, cytoskeleton, cell wall
D, chloroplast, large central vacuole
State the functions of each of the following: DNA, enzyme, fat, sugar. Classify each of them into the group of organic compounds to which they belong.
DNA, enzymes, fat, and sugar are the biological and organic compounds, which play a crucial role in living organisms.
What is the function of DNA?DNA is present in the chromosomes and encodes the information needed for an organism to develop, survive, and reproduce. The DNA consists of coding regions known as genes. DNA belongs to the category of nucleic acids.
What is the function of enzymes?Enzymes are biological catalysts, which catalyze several chemical reactions required for the survival of organisms. All enzymes belong to the group of organic compounds known as proteins.
What is the function of fats?Fats are the macronutrients, which are made up of glycerol and chains of fatty acids. The fats yield the maximum amount of calories when used up in metabolic reactions. The fats belong to the group of organic compounds known as lipids.
What is the function of sugar?Sugar is the sweet-tasting compound or substance, and are the primary sources of energy in almost every living being. The sugars such as glucose, fructose, starch, and cellulose carry out many functions. The sugars belong to the organic group of carbohydrates.
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As you sit on the beach, you notice that the breeze, which had been blowing toward the water from the land, shifts so that it is blowing off the water toward land. What event has just occurred?
Clouds have begun to form over the water.
The temperature over the land has reached its highest point for that day.
The temperature over the land has become higher than the temperature over the water.
The temperature over the water has become higher than the temperature over the land.
When the air temperature over land is higher than the air temperature over water, the air over land rises due to the lower pressure, hence c is the correct option.
What is the temperature between land and water?Because when the air temperature over land is higher than the air temperature over water, the air over land rises due to the lower pressure, and air over the ocean in to replace it.
The land surface warms up more quickly than the sea surface during the day, just to refresh your memory, warmer air is lighter than colder air.
Throughout the day, there can be large variations in the air temperature over the land.
Therefore, always higher than air over the ocean are air temperatures over land, hence c is the correct option.
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How does the process of fermentation help bread rise?
During the fermentation process in bread making, yeast metabolizes sugars to produce ethanol and carbon dioxide. This carbon dioxide causes the bread to rise by creating gas bubbles within the dough, leading to a light and fluffy texture once baked.
Explanation:The process of fermentation helps bread rise due to the action of yeast, a type of fungus, on the sugars present in the dough. When yeast metabolizes these sugars in an anaerobic environment (without oxygen), it undergoes alcoholic fermentation. This fermentation results in the production of ethanol and carbon dioxide (CO2). The CO2 is what causes the dough to rise, as the gas forms bubbles within the dough, expanding it and giving bread its light and fluffy texture.
The balanced chemical reaction for the fermentation of glucose during this process is:
C6H12O6 → 2C2H5OH + 2CO2
Glucose is converted into ethanol and carbon dioxide. The carbon dioxide gas gets trapped in the matrix of hydrated starch and protein molecules in the dough, which leads to the formation of small holes that we see in bread, contributing to its texture.
Which of these animals goes under complete metamorphosis?
A. Moth
B. Praying Mantis
C. Termites
D. Grasshoppers
4. What are the four chambers of the heart?
The human heart is divided into four chambers. These chambers are a right and left atrium and two lower ventricles.
what prediction can you make about why oil and water interact?
Which of the following is a possible ancestor to modern humans? a. Australopithecine Afarensis b. Australopithecine Robustus c. Neanderthals d. Apes and Chimpanzees
Answer:
a. Australopithecine Afarensis
Explanation:
With a skull of 3 million years, scientists have been able to prove the existence of Australopithecus afarensis, the oldest ancestor of humanity. 4 million years ago, humanity did not exist. But at least one creature bore in its bones what would be the hallmark of Homo sapiens. Australopithecus afarensis, that creature's name, had a tiny brain. But it stood like no monkey could do, representing an ancestral trait that would be passed from generation to generation to modern man.