In which biome are you likely to find an organism that has a white coat in winter and a light brown coat in summer? A. desert B. coniferous forest C. tropical rainforest D. savanna

An example of physical weathering has been frost wedging. Thus, option A is correct.

Physical weathering has been defined as the act of breaking of rocks under the influence of physical pressure. The physical weathering can be caused by slowly moving of water, plant roots or ice wedging.

In ice wedging or frost wedging, the water moves in the cracks of rocks and results in the expansion with conversion to solid state. The expansion results in the physical weathering of rocks.

Thus, an example of physical weathering has been frost wedging. Thus, option A is correct.

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Final answer:

In nuclear fusion, two or more atomic nuclei combine to form a new element or different atom (A), such as helium from hydrogen. Some of the mass is converted into energy, not resulting in pure energy only. Fusion powers stars and releases significant energy in the process.

Explanation:

The result of nuclear fusion reactions is (A) a new element or different atom formed from the original two. During a fusion reaction, two or more atomic nuclei collide at very high speed and join to create a new nucleus. An example of this process is the fusion of deuterium and tritium, light isotopes of hydrogen, which combine to form helium and release energy.

This energy release occurs because some of the mass of the fusing nuclei is converted into energy, following Einstein's mass-energy equivalence principle (E=mc²). Therefore, the result is not pure energy but a combination of a new element and released energy. Nuclear fusion is also the process that powers the stars, where hydrogen atoms fuse to form helium, releasing vast amounts of energy in the form of light and heat.

In summary, option (A) a new element or different atom formed from the original two is the correct result of a fusion reaction, as exemplified by the fusion reaction in stars.

Answer: 1 mol Al2O3/102.0 g Al2O3

If you break an element into its smallest particles, you will get atoms, because all matter, with elements, is made up of atoms.

Chemical elements are pure forms of matter that are present on the earth. They are made up of single types of atoms. And they are also found mixing with other substances on the earth. There are 118 elements in the periodic table.

Atoms are the smallest and basic particle form of which all matter is made up. They are made up of charged particles which are electrons, neutrons, and protons. In the center of the atom, there is a nucleus. Atoms are divisible particles.

As, all matters are made up of atoms, elements are also made up of atoms, so breaking of elements would give atoms.

Thus, you will get atoms by breaking the elements.

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Your best answer would be D

The smallest part of a compound is called a molecule. The correct answer is option d.

A compound is a substance that is made up of two or more different elements, which are chemically bonded to each other in a fixed ratio.

A molecule is the smallest part of a compound that retains the chemical properties of that compound. It is made up of two or more atoms that are chemically bonded together. When atoms combine to form molecules, they share electrons to achieve a stable electron configuration.

Therefore, a molecule is the smallest part of a compound. Option d is the correct answer.

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Due to mass conservation, the weight of the resulting products is the same as the reactants that participated in the reaction, 2 grams of reactant have been consumed.

Answer:

B

Explanation:

Why? Because if you search or look at a inside of a battery you'll see that it is made up of weird chemicals and stuff

(If you actually do look inside of a battery make sure to dispose correctly because it is dangerous.)

The type of energy present in the batteries of a flashlight is chemical energy.

Chemical energy is the energy stored in the bonds between atoms and molecules. When the batteries are used, the chemical energy is converted into electrical energy, which powers the flashlight.

Mechanical energy is the energy of motion. Radiant energy is the energy of light. Both of these types of energy are not present in batteries.

The chemical energy in the batteries is stored in the form of ions. When the batteries are used, the ions react with each other and release electrons. The electrons flow through the flashlight, creating an electric current. The electric current powers the light bulb in the flashlight, which produces light.

The chemical energy in the batteries is not infinite. Eventually, the batteries will run out of energy and the flashlight will stop working.

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The approximate rate of plate movement is different in different regions. It is reported that the annual rate of tectonic plate movement in Atlantic region is about 0.8 cm/yr and that in pacific region is about 4cm/yr.

The layers of earth crust and  is called as tectonic plates. This tectonic plates creates the earths lithosphere. Tectonic plates are irregularly placed slabs undergoing some movements.

Lithospheric movement or tectonic movements is caused by the convection current in hot mantle in the earth crust. This current moves the fluid and thereby results in the slight movements of plates.

Thus, the rate of movement of tectonic plate depends on the regional characteristics and ocean crust. The scientific reports says that it is near 0.8 cm per yr in north Atlantic regions and 4cm/ yr in pacific area.

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“Models are developed when a scientist’s creativity and insight are combined with data and observations about many similar scenarios”. Models are used for a lot of things in science. As we know everything has advantages and disadvantages, and the same applies to models. Models help us illustrate the concept and formulate hypothesis. When models are used, the scientists are able to notice patterns and develop and revise representation that become a useful model, which makes their scientific knowledge stronger and helps them understand more about the nature of science. Models are a simplified representation. One of the biggest advantages of the model is, that it allows you to have a look at things which are too small such as atoms or too big such as the solar system.

Although, having many benefits, models have quite a number of disadvantages. Models sometimes oversimplify the process therefore leading to a misunderstanding. As models are supposed to be a simplified representation, they will not be complex, which means they will lack detail. For Example “our particle model explains many things about matter, it is not comprehensive — for example, it cannot predict why certain materials have different electrical properties. We could add further refinements that are outside the scope of this course to enable it to do so, but it would make our model so complicated that it would no longer be useful to us”

Answer: Option (c) is the correct answer.

Explanation:

When dietary fiber is broken down then it divides into smaller pieces and therefore, it becomes easier for gastric acid and digestive enzymes in the stomach to digest the food.

Therefore, we can conclude that out of the given options the benefit of cooking food to break down dietary fiber is that it helps in improving digestibility.