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zloy xaker [14]
3 years ago
8

Chlorofluorocarbons(CFCs) damage the ozone layer.Where do these chemicals come from?

Biology
1 answer:
lisov135 [29]3 years ago
3 0
Chlorofluorocarbons come from aerosol spray, refrigerators.
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4 years ago
In humans, the quadriceps muscle is a skeletal leg muscle under voluntary control. As such, it contracts in response to signals
Masja [62]

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The correct answer is - operation of reflex arc.

Explanation:

The reflex arc is a unique and special type of neural pathway that starts with a sensory neuron and ends with a motor neuron. In this operation sensory neuron acts as the receptor and motor neuron is effector. This type of neural circuit helps in faster response.

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3 0
4 years ago
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