The answer is a dense substance that is hard and incompressible.
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.
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The direction of the motion is constantly changing during
motion over any closed path, not only circular.
Explanation:
Speed has only magnitude.
Velocity has magnitude and direction.
"A bike goes 25 m/s toward main street."
This includes a direction, so it is velocity (V).
"A person walks 4 mph."
This has only magnitude, so it is speed (S).
"A plane flies 200 m/s."
This has only magnitude, so it is speed (S).
"A bird flies 100 mph due south."
This includes a direction, so it is velocity (V).
<h3><u>Answer;</u></h3>
Migration
<h3><u>Explanation; </u></h3>
- Migration is the movement of animals from one place to another. Migration is an innate behavior that is triggered by changes in the environment.
- For example, animals may migrate when the days get shorter in the fall. Migration is most common in birds, fish, and insects.
- The regular movement of animals takes place at certain period each year, for the purposes of finding food, mates, or other resources.
