Environmental Issues Test

Result

Environmental Issues Test - 23

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Atomic bomb was used during World War II in.

A
$$1941$$

B
$$1939$$

C
$$1943$$

D
$$1945$$

Solution

The atomic bomb on Hiroshima was dropped in 1945 in world war II.
So, the correct answer is 1945'.
Question 2
1 / -0

Which one of the following is a greenhouse gas?

A
Oxygen

B
Methane

C
Sulphur dioxide

D
Nitrogen

Solution

Greenhouse gases are gases that cause a greenhouse effect. They absorb and emit infrared radiation. Water vapor, carbon dioxide, methane, nitrous oxide, and ozone are greenhouse gases.
Thus, the correct answer is option B.
Question 3
1 / -0

Global Warming Clauses
I. An increase in the sea level
II. The melting of ice at mountain peaks
III. A decrease in food production by plants

A
I only

B
I and II

C
II and III

D
I,II and III

Solution

In the given question, all the statements are correct because global warming has led to an increase in the average temperature of the Earth has led to the melting of ice in mountain peak resulting in higher sea levels global warming as also adversely affected the production and yield of crops.
So, the correct answer is 'I,II and III'
Question 4
1 / -0

Find the odd one out for the example of natural air pollutant.

A
pollen, spores

B
Insecticides

C
volcanic gases

D
agricultural burning

Solution

Insecticides are synthetic/chemical substances used for killing insects that cause damage to crops. Usually these are sprayed over the crops, the droplet of insecticides can cause a health hazard to farmers, animals and birds
So, the correct answer is 'Insecticides'
Question 5
1 / -0

Control of automobile air pollution can be done by all except:

A
use of biopetrol

B
periodic check up of pollution control for all vehicles

C
use of low sulphur diesel or CNG

D
prefering individual vehicles.

Solution

Vehicular or automobile air pollution can be controlled by using more public transport and using CNG instead of diesel/ petrol
So, the correct answer is 'preferring individual vehicles'
Question 6
1 / -0

Organic farming includes :

A
Use of fertilisers and pesticides of biological origin

B
IPM (Integrated Pest Management)

C
Locally developed pest resistant varieties

D
All of these

Solution

Organic farming includes the use of fertilizers and pesticides of biological origin, PM (Integrated Pest Management), locally developed pest-resistant varieties.
So, the correct option is 'All of these'
Question 7
1 / -0

Limit of BOD prescribed by Central Pollution Control Board, for the discharge of industrial and municipal waste waters into the surface water is:

A
< 100 ppm

B
< 30 ppm

C
< 3.0 ppm

D
< 10 ppm

Solution

The central pollution control board has framed general standards for discharge of environmental pollutants under 'The Environment Protection Rules', 1986. The standards have been fixed for a number of parameters like arsenic, colour, odour, oil and grease, BOD, COD, suspended solids, particulate size etc. The limiting value standard acceptable for BOD are 30 mg per liter for inland surface water, 350 for public sewer, 100 for land and 100 for marine coastal areas.
Question 8
1 / -0

BOD stands for

A
Biological organism death

B
Biochemical organic matter decay

C
Biotic oxidation demand

D
Biochemical oxygen demand

Solution

Biochemical Oxygen Demand (BOD) is the oxygen in milligrams required for 5 days in one litre of water at 20 degree centigrade for the micro organisms to metabolise organic wastes present in water.
Question 9
1 / -0

Freon gas causing stratospheric $$O_{3}$$ depletion is mainly released from

A
Refrigerator

B
Automobile

C
Thermal power plant

D
Steel industry

Solution

Freon or Aerosols or Chlorofluorocarbons (CFCs) are the chemicals used as refrigerants, propellants and solid plastic foams. The chemicals are also released as aerosol by jets. Along with nitrous oxide, CFCs react with ozone of ozonosphere and deplete the same.
So, the correct answer is 'Refrigerator'
Question 10
1 / -0

Which one of the following is the correct percentage of (the two out of four) greenhouse gases that contribute to the total global warming?

A
N$$_2$$O 6%, CO$$_2$$ 86%

B
Methane 20%, N$$_2$$O 18%

C
CFC 14%, Methane 20%

D
CO$$_2$$ 40%, CFC 30%

Solution

Greenhouse gasses generally traps the radiations of the earth which leads to increase in the temperature of the earth and global warming. The greenhouse gasses includes water vapor, carbon dioxide, methane, nitrous oxide, and ozone. The concentration of ozone is 14% and methane is 20%.
Thus, the correct answer is option C.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Environmental Issues Test - 23

Result

Environmental Issues Test - 23

Score

-

Rank

-

SHARING IS CARING

Question 1

$$1941$$

$$1939$$

$$1943$$

$$1945$$

Solution

Question 2

Oxygen

Methane

Sulphur dioxide

Nitrogen

Solution

Question 3

I only

I and II

II and III

I,II and III

Solution

Question 4

pollen, spores

Insecticides

volcanic gases

agricultural burning

Solution

Question 5

use of biopetrol

periodic check up of pollution control for all vehicles

use of low sulphur diesel or CNG

prefering individual vehicles.

Solution

Question 6

Use of fertilisers and pesticides of biological origin

IPM (Integrated Pest Management)

Locally developed pest resistant varieties

All of these

Solution

Question 7

< 100 ppm

< 30 ppm

< 3.0 ppm

< 10 ppm

Solution

Question 8

Biological organism death

Biochemical organic matter decay

Biotic oxidation demand

Biochemical oxygen demand

Solution

Question 9

Refrigerator

Automobile

Thermal power plant

Steel industry

Solution

Question 10

N$$_2$$O 6%, CO$$_2$$ 86%

Methane 20%, N$$_2$$O 18%

CFC 14%, Methane 20%

CO$$_2$$ 40%, CFC 30%

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.