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Sloan [31]
3 years ago
14

When is it appropriate to use models?

Chemistry
1 answer:
Alexxandr [17]3 years ago
4 0

your answer should be the last one: models should be used when needed to explain or predict data being represented.

hope this helps :)

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In some places timber companies remove all the trees from entire hillside when they are harvesting logs and farmers till the soi
laila [671]

Answer:

The timber companies removing all the trees from entire hillside when they are harvesting logs is a practice that could cause the following when it is time to plant in spring:

1. It could affect the quality of plant needed nutrients in the soil and beneficial microorganism population in the soil which could impact negatively the planting season.

2. Trees serves as protection of soil nutrients against wind erosions, so the soil nutrients would be affected.

The farmers tilling the soil means preparing the soil for a farming season as the following effect:

1. Helps control weed for the planting season.

2. This practice could further encourage soil erosion if not done well.

3. Tilling the soil could make leftover plants from the felling of trees mix well with the soil and also add nutrients to the soil when they decay.

8 0
3 years ago
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Activation energy is needed so reactants can move together, overcome forces of repulsion, and to begin breaking bonds.

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Answer:Crystalline solids have well-defined edges and faces, diffract x-rays, and tend to have sharp melting points. In contrast, amorphous solids have irregular or curved surfaces, do not give well-resolved x-ray diffraction patterns, and melt over a wide range of temperatures.

Explanation:

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