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Which gas is increasing the most in the atmosphere and causing the biggest threat to the world by intensifying the greenhouse effect?
Threshold
The point at which a stimulus is strong enough to be detected or to cause a response.
Difference Threshold
The smallest detectable difference between two stimuli or the minimum change in a stimulus that can be correctly perceived as differing from a reference stimulus.
Just Noticeable Difference
The minimum difference in stimulus intensity that a specific sense (like sight, hearing, taste, touch, or smell) can detect.
Optic Nerve
The nerve that transmits sensory information from the eye to the brain.
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