Environmental Issues :MCQs *From NCERT* Difficulty Level - Medium [46+Q]

 

 

Question:   From NCERT NEET  Derived PYQ 

A catalytic converter :
1. reduces unburnt hydrocarbon in auto emissions
2. converts NOx to nitrogen
3. reduces lead in the exhaust
4. converts carbon dioxide to carbon monoxide

 Answer ▽ 

1

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Question:   From NCERT NEET  Derived PYQ 

Which of the following is not one of prime health risks associated with greater UV

radiation through the atmosphere due to depletion of stratospheric zone?

1. Increased skin cancer

2. Reduced immune system

3. Damage to eyes

4. Increased liver cancer

 Answer ▽ 

4

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Question:   From NCERT NEET  Derived PYQ 

Which one of the following pairs of gases are the major cause of Green house effect?

1. CO2 and CO

2. CFCs and SO2

3. CO2 and N20

4. CO2 and O3

 Answer ▽ 

3

Greenhouse Gases

The gases responsible for the greenhouse effect on earth are called greenhouse gases. The rise in their abundance in the atmosphere is posing a huge threat to life. Hence, it is important to learn about them.

The 4 major greenhouse gases are Carbon dioxide, Methane, Chlorofluorocarbon and Nitrous oxide. Let us use a mnemonic to remember these four gases.

Can Mars be Colonized Now?

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Question:   From NCERT NEET  Derived PYQ 

Which one option is incorrectly matched regarding biological magnification of DDT in aquatic ecosystem.
(1) Small fish                        0.5 ppm 

(2) Large fish                        2 ppm

(3) Fish eating birds               25ppm

(4) Zoopkankton                   0.003 ppm

 Answer ▽ 

4

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Question:   From NCERT NEET  Derived PYQ 

The act to control environmental pollution is passed by Government of India is

(1) Environment Pollution Act-1981

(2) Environment Pollution Act-1986

(3) Environment Protection Act-1986

(4) Environment Protection Act-1981

 Answer ▽ 

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Question:   From NCERT NEET  Derived PYQ 

Electrostatic Precipitator has

(1) An instruction of low velocity of air between the plates

(2) An instruction of high velocity of air between the plates to allow rapid fall of dust particles

(3) An instruction of no air between plates so that charge may not get disturbed

(4) Both A and C

 Answer ▽ 

1

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Question:   From NCERT NEET  Derived PYQ 

In metro cities, which of the following is the major cause of atmospheric Pollution?

(1) Automobiles

(2) Population

(3) Industries

(4) All of these

 Answer ▽ 

1

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Question:   From NCERT NEET  Derived PYQ 

If one is using Catalytic Converter in his vehicle then he should use

(1) Leaded petrol as it activates the catalyst

(2) Unleaded petrol activates the catalyst

(3) Leaded petrol as it inactivates the catalyst

(4) Unleaded petrol as lead inactivates the catalyst

 Answer ▽ 

4

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Question:   From NCERT NEET  Derived PYQ 

Which of the following is wrong?

A.Emission of infrared by Earth's Surface

B.Clouds and gases reflect one fourth of incoming solar radiation

C. Carbon dioxide and methane absorb a major fraction of infrared radiation emitted by Earth

D. During the past century, the temperature of Earth has increased by 0.6℃, most of it during the last five decades

 Answer ▽ 

D

During the past century, the temperature of the earth has increased by 0. 6oC , most of it during the last few decades.

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Question:   From NCERT NEET  Derived PYQ 

Montreal Protocol

Find the wrong information about it.

(1) An International Treaty

(2) Was signed at Montreal (canada)

(3) To control the emission of Ozone depleting substances

(4) Was effective in 1987

 Answer ▽ 

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The Montreal Protocol on Substances that Deplete the Ozone Layer is a global agreement to protect the Earth’s ozone layer by phasing out the chemicals that deplete it. This phase-out plan includes both the production and consumption of ozone-depleting substances. The landmark agreement was signed in 1987 and entered into force in 1989.

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Question:   From NCERT NEET  Derived PYQ 

Soil Erosion and desertification least likely resulted in which of the following cases?

(1) Over Cultivation

(2) Unrestricted Grazing

(3) Deforestation, Poor Irrigation Practices

(4) Proper resource Utilization and Maintenance

 Answer ▽ 

4

least likely resulted = कम से कम परिणाम की संभावना

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Question:   From NCERT NEET  Derived PYQ 

Which of the following have come into wake of the green revolution?
(1) Organic Farming
(2) Water logging
(3) Soil salinity
(4) Both 2 and 3

 Answer ▽ 

4

Water logging and soil salinity are of the problems that have come in the wake of the Green Revolution. 

Water logging and soil salinity is caused by extensive irrigation without proper drainage of water.
Continuous presence of water draws salt to the surface of the soil, which gets deposited as a thin crust on the land surface or collecting at the roots of the plants.
Adverse effects
(i) Increased salt content stunts the growth of crop plants.
Root cells saturated with saline water gets damaged.
(iii) Plants die.
(iv) Crop yield gets affected.
(v) Financial loss to the farmers.

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Question:   From NCERT NEET  Derived PYQ 

Chipko Movement,

(1) Garhwal Himalayas

(2) In 1978

(3) In 1731, by Amrita Devi

(4) Both A and C

 Answer ▽ 

1

• Chipko movement was a forest conservation movement in India that was first started in a small village Reni in 1974 by a group of women under leadership of Gaura Devi.
• The name of the movement comes from the word 'Embrace', as the villagers hugged the trees, and prevented the contractors from felling them. 

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Question:   From NCERT NEET  Derived PYQ 

Consider the following statements:
I. The “bad” ozone is the ozone that is formed in the troposphere.
II. The “good ozone” in the stratosphere acts as a shield against harmful UV radiation.
III. UV-A radiations can cause skin cancers and snow-blindness cataracts.

Which of the above statements are true?
1. I and II only          2. I and III only
3. II and III only        4. I, II, and III

 Answer ▽ 

1. I and II only  

Overexposure to UVA radiation can lead to age-related macular degeneration and can cause some types of cataracts. 

UVB rays are the main cause of sunburns, wrinkles, skin discoloration and cancers of the skin. These rays have slightly longer wavelengths and emit higher energy than UVA rays.

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Question:   From NCERT NEET  Derived PYQ 

The following diagram shows the effect of sewage discharge on some important characteristics of a river. What can be A and B respectively?

1. BOD and DO
2. DO and BOD
3. BOD and COD
4. COD and BOD

 Answer ▽ 

2

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Question:   From NCERT NEET  Derived PYQ 

State True (T) or False (F) for the following statements and select the correct option
A. Motor vehicles equipped with catalytic converter should use unleaded petrol because lead in the petrol inactivates the catalyst.
B. Recently government of India has instituted the Amrita Devi Bishnoi Wildlife Protection Award for
individuals from urban areas that have shown extraordinary courage and dedication in protecting
wildlife.
C. Reforestation may occur naturally in a deforested area.
   A   B   C
1. T   T   F
2. T   F   T
3. T   F   F
4. F   F   T

 Answer ▽ 

2

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Question:   From NCERT NEET  Derived PYQ 

Reforestation can

(1) Occur naturally

(2) Be speeded by planting trees with due consideration to biodiversity that earlier existed in that area

(3) Occur during Jhum cultivation

(4) All of these

 Answer ▽ 

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Question:   From NCERT NEET  Derived PYQ 

Which one is not an effect of increase in the level of greenhouse gases?
1. ${\mathrm{CO}}_2$ fertilisation effect.
2. EI Nino effect.
3. Snow blindness.
4. Warming of troposphere and cooling of stratosphere and thermosphere

 Answer ▽ 

3

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