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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Answer:
N2 + H2 --> 2 NH
Explanation:
You need to add 2 to make it correct
Affects populations,
Occurs when there is genetic variation
Selects organisms with certain traits to survive.
Fossil fuels are buried geologic deposits of organic materials. They are made of decaying plants and animals that have been turned into to natural oil. A few examples of fossil fuels are coal and oil.
