Ice Crystals

question 34

Multiple Choice

Ice crystals

• A) never occur in clouds.
• B) usually are found in low-altitude clouds.
• C) usually occur in high-altitude clouds.
• D) occur equally often in clouds at all altitudes.

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Definitions:

Carrying Capacity

The maximum population size of a biological species that an environment can sustain indefinitely, given the food, habitat, water, and other necessities available.

Environmental Resistance

A set of factors in an ecosystem that limits the growth of a population.

Biotic Potential

The maximum reproductive capacity of a species under optimal environmental conditions.

Critical Nutrients

Essential substances required for growth and maintenance of life that the body cannot synthesize in sufficient quantities and must be obtained through the diet.