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Other quiz:

Pollution › View

Which human action can cause pollution?

A. Walking

B. Biking

C. Mining

D. Recycling

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Eye › View

Optical illusions are caused by a mismatch between what the eye sees and…

A. how light is refracted onto the retina.

B. how the brain interprets the image.

C. how fast the optic nerve carries the image.

D. the shape of the lens.

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