The Average Person Blinks Two or Three Times a Second

question 67

Multiple Choice

The average person blinks two or three times a second to

• A) rest the eyes briefly.
• B) cleanse the eyes.
• C) refocus the eyes.
• D) avoid eyestrain.

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Definitions:

Desert

A barren area of landscape where little precipitation occurs and consequently living conditions are hostile for plant and animal life.

Arctic Tundra

A biome characterized by cold, desert-like conditions, found in the Arctic regions, supporting a limited range of plants and animals adapted to extreme cold.

Global Air Circulation

The large-scale movement of air through the earth's atmosphere, distributing heat and moisture around the planet.

Grazing Livestock

The practice of keeping domesticated animals such as cattle, sheep, and goats, allowing them to feed on grass and other pasture vegetations.