Which Pair of Terms Applies to Changes Such as Drought

question 72

Multiple Choice

Which pair of terms applies to changes such as drought and earthquakes? 

• A) natural and catastrophic 
• B) human caused and catastrophic 
• C) natural and gradual 
• D) human caused and gradual

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Definitions:

Aqueous Humor

A clear fluid found in the eye, between the cornea and the lens, that helps maintain pressure and nourishes the cornea and lens.

Depth of Focus

The range within which an image can be moved away from or closer to a lens without significantly affecting its sharpness.

Accommodation

Ability of electrically excitable tissues, such as nerve or muscle cells, to adjust to a constant stimulus so that the magnitude of the local potential decreases through time; also called adaptation.

Convergence

The tendency of unrelated animals and plants to evolve superficially similar characteristics under similar environmental conditions or the movement of eyes inward towards the nose.