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NEET • BIOLOGY • ENVIRONMENTAL ISSUES
Environmental issues practice · Mixed difficulty
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Showing 211-240 of 245 questions
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211
Hard
211 of 245
Remembering
+4 | -1
The electronic appliances that are not in use will eventually form part of
View answer and explanation
Correct option: C
e-wastes
Option C (e-wastes) is correct because electronic appliances that are not in use eventually become electronic waste.
212
Medium
212 of 245
Understanding
+4 | -1
Shell of egg in bird becomes thin (not properly formed) due to the pollution of pesticides. This occurs due to disturbed
View answer and explanation
Correct option: A
Calcium metabolism
Option A (Calcium metabolism) is correct because pesticides can interfere with calcium metabolism in birds, leading to thinner eggshells.
213
Medium
213 of 245
Understanding
+4 | -1
Global warming can be controlled by
I. reducing deforestation
II. planting trees (afforestation)
III. slowing down the growth of human population
IV. reduction of emission of greenhouse gases into the atmosphere
V. cutting down the use of fossil fuels
Which of the statement given above are correct?
I. reducing deforestation
II. planting trees (afforestation)
III. slowing down the growth of human population
IV. reduction of emission of greenhouse gases into the atmosphere
V. cutting down the use of fossil fuels
Which of the statement given above are correct?
View answer and explanation
Correct option: D
I, II, IV and V
Option D (I, II, IV and V) is correct because reducing deforestation, afforestation, reducing greenhouse gas emissions, and reducing fossil fuel use all help control global warming.
214
Easy
214 of 245
Remembering
+4 | -1
Which of the following compounds are well known for biological magnification?
View answer and explanation
Correct option: C
Both (1) and (2)
Option C is correct because both DDT and mercury are well-known for their ability to undergo biological magnification, increasing in concentration as they move up the food chain.
215
Easy
215 of 245
Remembering
+4 | -1
Increase the atmospheric temperature due to is called
View answer and explanation
Correct option: B
Green house effect
Option B (Green house effect) is correct because the increase in atmospheric temperature due to is the greenhouse effect.
216
Easy
216 of 245
Remembering
+4 | -1
Term used for accumulation of non-degradable pollutants in higher trophic level is
View answer and explanation
Correct option: A
Bio magnification
Option A (Bio magnification) is correct because biomagnification is the process where non-degradable pollutants accumulate in increasing concentrations at higher trophic levels.
217
Easy
217 of 245
Understanding
+4 | -1
In electrostatic precipitator, electrode wires are provided with an electric current of several thousand volts, which produces a corona that release …A…
These electron attach to dust particle and given them a …B… charge within a very small fraction of a second. Here A and B refers to
These electron attach to dust particle and given them a …B… charge within a very small fraction of a second. Here A and B refers to
View answer and explanation
Correct option: C
A-electron; B-negative
Option C (A-electron; B-negative) is correct because electrostatic precipitators use electrons to negatively charge dust particles.
218
Easy
218 of 245
Remembering
+4 | -1
One of the main reasons of soil erosion in India is
View answer and explanation
Correct option: B
Deforestation
The correct answer is B (Deforestation) because removing trees leaves the soil exposed and vulnerable to erosion by wind and water.
219
Easy
219 of 245
Remembering
+4 | -1
Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste water into natural surface water, is
View answer and explanation
Correct option: B
< 10 ppm
Option B (< 10 ppm) is correct because the CPCB prescribes a BOD limit of less than 10 ppm for discharge into natural surface water.
220
Medium
220 of 245
Understanding
+4 | -1
Why ozone is known as ‘chemical weed’?
View answer and explanation
Correct option: B
Because it is harmful as well useful
Option B (Because it is harmful as well useful) is the correct answer because ozone, while protecting us from harmful UV radiation, can also be a pollutant at ground level.
221
Medium
221 of 245
Remembering
+4 | -1
Polyblend is mixed with …A… to lay roads in …B… . Complete the given statement by choosing appropriate option for A and B
View answer and explanation
Correct option: A
A-bitumen; B-Bengaluru
Option A (A-bitumen; B-Bengaluru) is correct because Polyblend, a fine powder of recycled modified plastic, is mixed with bitumen to lay roads in Bengaluru.
222
Medium
222 of 245
Understanding
+4 | -1
Which one of the following pairs is mismatched?
View answer and explanation
Correct option: D
Solar energy --- Green house effect
Option D (Solar energy --- Green house effect) is correct because solar energy is a clean energy source and does not directly contribute to the greenhouse effect.
223
Medium
223 of 245
Understanding
+4 | -1
Which of the following features would be characteristic of the stratosphere but not of the troposphere?
View answer and explanation
Correct option: A
Most ozone resides here
Option A (Most ozone resides here) is correct because the stratosphere contains the ozone layer, which absorbs UV radiation.
224
Easy
224 of 245
Analyzing
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Assertion: Inhabitants close to very busy airports are likely to experience health hazards.
Reason: Sound level of jet aeroplanes usually exceeds 160 dB.
Reason: Sound level of jet aeroplanes usually exceeds 160 dB.
View answer and explanation
Correct option: A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
Option A is correct because inhabitants near busy airports are indeed prone to health hazards due to noise pollution, and the sound level of jet aeroplanes often exceeds 160 dB, contributing to these hazards.
225
Easy
225 of 245
Understanding
+4 | -1
Consider the following statements
I. Noise causes psychological disorder in humans
II. Noise causes physiological disorder in humans
III. Noise measurable unit is dB but some times it is measured in Dobson unit
IV. 150 dB is tolerate for human
Which of the above statements are true?
I. Noise causes psychological disorder in humans
II. Noise causes physiological disorder in humans
III. Noise measurable unit is dB but some times it is measured in Dobson unit
IV. 150 dB is tolerate for human
Which of the above statements are true?
View answer and explanation
Correct option: B
I and II
Option B (I and II) is correct because noise pollution can cause both psychological and physiological disorders in humans. The other statements are incorrect.
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226
Easy
226 of 245
Remembering
+4 | -1
Green-house effect refers to
View answer and explanation
Correct option: D
Warming of earth
Option D (Warming of earth) is correct because the greenhouse effect results in the warming of the Earth's surface.
227
Medium
227 of 245
Remembering
+4 | -1
Chipko movement was successfully launched by
View answer and explanation
Correct option: A
SL Bahuguna
Option A (SL Bahuguna) is correct because Sunderlal Bahuguna was a prominent leader and key figure in the Chipko movement.
228
Medium
228 of 245
Remembering
+4 | -1
Rain is called acid rain when its pH is below
View answer and explanation
Correct option: D
5.6
Option D (5.6) is correct because rain is defined as acid rain when its pH falls below 5.6.
229
Hard
229 of 245
Understanding
+4 | -1
Which one of the following is an environment-related disorder with the correct main cause?
View answer and explanation
Correct option: B
Blue baby disease (methaemoglobinaemia) due to heavy use of nitrogen-rich fertilisers in the area.
Option B (Blue baby disease) is correct because methaemoglobinaemia is directly linked to nitrate contamination from nitrogen-rich fertilizers.
230
Hard
230 of 245
Remembering
+4 | -1
Yellowing of Taj Mahal is mainly caused by
View answer and explanation
Correct option: B
Option B () is correct because the yellowing of the Taj Mahal is primarily caused by sulphur dioxide () pollution, which reacts with the marble.
231
Medium
231 of 245
Remembering
+4 | -1
Which one of the following is the heavy toxic metal present in waste water from industries?
View answer and explanation
Correct option: A
Mercury
Option A (Mercury) is correct because mercury is a well-known heavy toxic metal commonly found in industrial wastewater.
232
Easy
232 of 245
Analyzing
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Which one is odd w.r.t primary pollutant?
View answer and explanation
Correct option: C
Option C () is correct because it is a secondary pollutant, formed from primary pollutants, while the others are directly emitted.
233
Easy
233 of 245
Understanding
+4 | -1
Ozone depletion in stratosphere shall result in
View answer and explanation
Correct option: D
Increased incidence of skin cancer
Option D (Increased incidence of skin cancer) is correct because ozone depletion in the stratosphere leads to higher levels of UV radiation reaching the Earth's surface, which increases the risk of skin cancer.
234
Medium
234 of 245
Understanding
+4 | -1
Which of the following are advantages of ecological sanitation?
I. It is a practical, hygienic and efficient method of waste disposal
II. It is cost effective
III. Human excreta can be recycled into natural fertilisers, to replace chemical fertilisers
I. It is a practical, hygienic and efficient method of waste disposal
II. It is cost effective
III. Human excreta can be recycled into natural fertilisers, to replace chemical fertilisers
View answer and explanation
Correct option: D
I, II and III
Option D is correct because ecological sanitation is practical, cost-effective, and allows for the recycling of human excreta into natural fertilizers.
235
Medium
235 of 245
Remembering
+4 | -1
For the control of air pollution in Delhi, all buses of Delhi were converted to run on …A… by the end of …B… as per the directives of the …C…
Complete the given statement by choosing appropriate options for A-C
Complete the given statement by choosing appropriate options for A-C
View answer and explanation
Correct option: C
A-compressed natural gas, B-2002, C-Supreme Court
Option C (A-compressed natural gas, B-2002, C-Supreme Court) is correct because all buses in Delhi were converted to run on compressed natural gas (CNG) by the end of 2002 as per the directives of the Supreme Court.
236
Hard
236 of 245
Analyzing
+4 | -1
Assertion : Smog is commonly formed at places
having low temperature and high pollution of
aerosol.
Reason : It is very common in metropolis cities
of India.
having low temperature and high pollution of
aerosol.
Reason : It is very common in metropolis cities
of India.
View answer and explanation
Correct option: A
If both Assertion and Reason are true and
Reason is the correct explanation of Assertion
Reason is the correct explanation of Assertion
Option A (If both Assertion and Reason are true and Reason is the correct explanation of Assertion) is correct because smog formation is favored by low temperatures and high aerosol pollution, which is common in metropolis cities.
237
Medium
237 of 245
Understanding
+4 | -1
The soil pollutants that affect the food chain and food web by killing microorganisms and plants are
View answer and explanation
Correct option: D
Pesticides
Option D (Pesticides) is correct because pesticides are designed to kill microorganisms and plants, thus affecting the food chain and food web in the soil.
238
Medium
238 of 245
Remembering
+4 | -1
Ultraviolet radiations from sunlight causes a reaction that produces
View answer and explanation
Correct option: D
Ozone
Option D (Ozone) is correct because ultraviolet (UV) radiation from sunlight causes a photochemical reaction that produces ozone () in the stratosphere.
239
Medium
239 of 245
Understanding
+4 | -1
Kyoto protocol has specified the commitments of different countries
View answer and explanation
Correct option: A
To mitigate climate changes
Option A (To mitigate climate changes) is correct because the Kyoto Protocol specifically outlines commitments for countries to reduce greenhouse gas emissions and address climate change.
240
Medium
240 of 245
Remembering
+4 | -1
Kyoto protocol is related with
View answer and explanation
Correct option: B
Green house effect
Option B (Green house effect) is correct because the Kyoto Protocol is an international agreement aimed at reducing greenhouse gas emissions.
Revision notes and key takeaways
Review ENVIRONMENTAL ISSUES in your textbook or class notes, then use this set to check your understanding.
Showing 211-240 of 245 questions