Question

B. Define these terms.
1. atmosphere
2. stratosphere
3. chlorination​

Answer 1

Answer:

the mixture of gases that surrounds the earth or any other star, planets etc

the layer of the earth’s atmosphere between about 10 and 50 kilometres above the surface of the earth

combine or treat (a substance) with chlorine. to disinfect (water) with chlorine.

Answer 2

Answer:

$atmosphere$

• The mixture of gases that surrounds the earth or any other star, planet, etc.

$stratosphere$

• The layer of the earth’s atmosphere between about 10 and 50 kilometres above the surface of the earth.

$chorination$

• Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water. ... In particular, chlorination is used to prevent the spread of waterborne diseases such as cholera, dysentery, and typhoid.

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