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31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Bank Exams MCQ


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15 Questions MCQ Test - 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT)

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) for Bank Exams 2024 is part of Bank Exams preparation. The 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) questions and answers have been prepared according to the Bank Exams exam syllabus.The 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) MCQs are made for Bank Exams 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) below.
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31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 1

Dobson units are used to measure thickness of:    [2021]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 1

The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of Dobson units (DU).

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 2

Snow - blindness in Antarctic region is due to :    [2020]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 2

In human eye, cornea absorbs UV-B radiation, and a high dose of UV-B causes inflammation of cornea, called snow-blindness It is a painful eye condition caused by overexposure to ultraviolet (UV) light. Cornea sunburn results due to the effects of UV light on the cornea.

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31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 3

Which of the following pairs of gases is mainly responsible for greenhouse effect?   [2019]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 3

The various greenhouse gases are CO2, CH4, CFCs and N2O. Excessive use o f fossil fuels is adding more CO2 to atmosphere. This increase in concentration of greenhouse gases has led to considerable heating of earth leading to global warming. During the past century, the temperature of earth has increased by 0.6°C.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 4

In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen?  [2018]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 4

UV rays act on chlorofluorocarbons (CFCs) releasing active chlorine (Cl, CIO) which further reacts with ozone in sequential manner thereby converting it into oxygen.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 5

A location with the luxuriant growth of lichens on the trees indicates that the: [2014]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 5
  • Lichens are composed of algae and fungi living together in a symbiotic relationship.
  • Sulfur dioxide, is a pollutant which when mixed with rainwater or air can damage lichens and does not allow them to grow due to which they act as natural indicators of air pollution.
  • Therefore the absence of lichens indicates that the area is heavily polluted with sulfur dioxide. 
31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 6

A scrubber in the exhaust of a chemical industrial plant removes: [2014]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 6

The scrubber is an electrostatic precipitator in which the dirty air is cleaned by capturing gas like SO2 and other oxides in water/lime spray (CaCO3).

Illustration of Electrostatic Percipitator:

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 7

High value of BOD (Biochemical Oxygen Demand) indicates that: [2015 RS]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 7

High value of BOD (Biochemical Oxygen Demand) indicates that water is highly polluted. BOD is a measure of the amount of oxygen that is consumed by microorganisms as they break down organic matter in water. The higher the BOD, the more polluted the water is because there is a greater demand for oxygen by the microorganisms.

Water with a high BOD may contain high levels of organic matter, such as plant and animal matter, as well as substances like sewage and industrial waste. These substances provide food for the microorganisms, which consume oxygen as they break them down. As a result, the oxygen levels in the water may drop, leading to a decrease in the amount of oxygen available for other aquatic life.

Water with a low BOD may be less polluted, as it may contain less organic matter and therefore have a lower demand for oxygen by the microorganisms. However, low BOD does not necessarily mean that the water is pure. Other factors, such as the presence of chemicals, heavy metals, and pathogens, can also affect the quality of the water.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 8

The UN Conference of Parties on climate change in the year 2011 was held in: [2015 RS]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 8

The UN Conference of Parties on climate change in 2011, was held in Durban, South Africa. It aimed at decrease of pollutant emission.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 9

Which of the following is NOT one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone? [2015 RS]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 9

Liver cancer is caused due to aflatoxin released by Aspergillus fungus and Vinyl chloride. UV-rays are not related with liver cancer.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 10

The UN conference of Parties on climate change in the year 2012 was held at: [2015 RS]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 10

This conference occured from 20 Nov to 8 December, 2012 to extend the life of the Kyoto Protocol at Doha in Qatar.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 11

Acid rain is caused by increase in the atmospheric concentration of: [2015 RS]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 11

60 - 70% SO2 and 20 - 30% NO2 contribute in the acid rain

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 12

Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of: [2015 RS]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 12

Eutrophication is the excessive growth of algae, plants, and animals in water bodies due to nutrient enrichment, particularly with nitrogen and phosphate.
There is a drastic decrease in oxygen replenishment inside water. Non-availability of oxygen results in the death of aquatic animals.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 13

Joint Forest Management Concept was introduced in India during: [2016]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 13

Joint forest management or JFM is a programme launched by the Government of India in 1988 and guidelines issued in 1990.
It aims at establishing the partnership between local communities and state forest departments.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 14

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers: [2016]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 14

The ozone layer or ozone shield refers to a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation.

31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 15

A river with an inflow of domestic sewage rich in organic waste may result in: [2016]

Detailed Solution for 31 Years NEET Previous Year Questions: Environmental Issues - 1 (Old NCERT) - Question 15

Domestic sewage rich in organic waste leads to an increase in Biological Oxygen Demand, which leads to a decrease in D.O. (dissolved oxygen) which leads to the death of fishes.

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