Question # 1

Earth has natural systems.

Choose an answer

One

Two

Three

Four

Which of the following can be used as a fuel?

Choose an answer

Methanol

Ethanol

Bio-diesel

All of them

Ozone is formed in:

Choose an answer

Troposphere

Stratosphere

Mesosphere

Thermosphere

Our planet earth consists of ____________ natural Spheres.

Choose an answer

1

4

6

8

The pH of water containing CO₂ is

Choose an answer

4-6

5.6-6

6-7

7-8

Which gas saves the surface of earth from ultra violet radiation?

Choose an answer

CO₂

CO

N₂

O₃

Which one of the following is not air pollutants?

Choose an answer

N₂

CO

NO₂

O₂

Which is not an air pollutant?

Choose an answer

CO₂

CO

SO₂

NH₃

___________ is not green house effect.

Choose an answer

Increase of food chain

increase atmospheric pressure

Increase of sea level

Increase of flood risks

Percentage of nitrogen in atmosphere is:

Choose an answer

20.94%

78.09%

0.93%

0.03%

The gas use by plants to perform photosynthesis.

Choose an answer

O₂

CO₂

N₂

CO

ozone depletion (i.e O3--------------> O2 + O) occurs in:

Choose an answer

lower stratosphere

middle stratosphere

upper stratosphere

troposphere

Which of the following is a secondary pollutant.

Choose an answer

CO₂

CO

SO₃

HF

Ozone has a smell

Choose an answer

Bitter

Rotten egg

Sweat

None of them

More Classes

Other Links

Chemistry 10th Class English Medium Unit 14 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer