Chemistry 9th Class English Medium Unit 10 Online Test

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Chemistry 9th Class English Medium Unit 10 Online Test

Try the Chemistry 9th Class English Medium Unit 10 Online Test.

  • Total Questions12

  • Time Allowed15

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Chemistry 9th Class English Medium Unit 10 Online Test

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Question # 1

Which is not a characteristics of SO2?

Question # 2

Which is not an air pollutant

Question # 3

fossil fuel means.

Question # 4

Normally rain water is weakly acidic becasue of.

Question # 5

Whcih factor deermines the severity of a pollutant.

Question # 6

Which type of pollutants are responsible for changing weather.

Question # 7

How many trees are cut down to make toliet paper every day.

Question # 8

Which one of these pollutants are not found in car exhaust fumes.

Question # 9

Higher concentration of CO causes

Question # 10

A pollutant is a waste material that pollutes.

Question # 11

Why is smog not felt in summer?

Question # 12

Concentration of which gas in the atmosphere is decreased by photosynthesis in plants.

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