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NEET Environmental Issues PYQs with Solutions

192 previous year questions from Environmental Issues (NEET UG Botany) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

192 questionsBotany2002–2023Answers + solutions

About Environmental Issues PYQs

Environmental Issues has 192 previous year questions in the Quantrex Academy NEET UG Botany bank. The 192 questions in this list come from NEET (159) and JIPMER (33), spanning 2002 to 2023. Each question opens on its own page with the options, the correct answer and the worked solution where available.

NEET Environmental Issues PYQs with Solutions

About Environmental Issues PYQs

Questions by year (this list)

Environmental Issues questions with solutions

What will happen if fresh water lake gets contaminated by addition of polluted water with high BOD?

Nitrates and phosphates flowing from agricultural farms into water bodies are a significant cause of :

Match List-I with List-II Choose the correct answer from the option given below:

Select the correct statements regarding dissolved Oxygen and Biochemical oxygen demand. (A) BOD is inversely related to dissolved oxygen. (B) Low dissolved oxygen and high BOD

The thickness of ozone in a column of air in the atmosphere is measured in terms of:

Which one of the following statements is NOT correct?

Given below are two statements: Statement I: Electrostatic precipitator is most widely used in thermal power plant. Statement II: Electrostatic precipitator in thermal power plant

Which of the following statements is correct?

Why CNG is considered better fuel than diesel? (a) It can not be adulterated (b) It takes less time to fill the fuel tank (c) It burns more efficiently (d) It is cheaper (e) It is

The device which can remove particulate matter present in the exhaust from a thermal power plant is:

The entire fleet of buses in Delhi were converted to CNG from diesel. In reference to this, which one of the following statements is false?

Given below are two statements: Statement I : In a scrubber, the exhaust from the thermal plant is passed through the electric wires to charge the dust particles. Statement II

Dobson units are used to measure thickness of:

Air (Prevention and Control of Pollution) Act was amended in 1987 to include among pollutants:

According to Central Pollution Control Board [ CPCB ] what size (in diameter) of particulate is responsible for causing greater harm to human health?

Snow-blindness in Antarctic region is due to

Montreal protocol was signed in 1987 for control of

Eutrophication is caused due to

Which of the following statements about ozone is correct?

Which of the following is an innovative remedy for plastic waste?

If an agricultural field is liberally irrigated for a prolonged period of time, it is likely to face problem of

Which of these following methods is the most suitable for disposal of nuclear waste?

Which of the following pairs of gases is mainly responsible for green house effect?

Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere?

Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for:

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to

Which gases are responsible for increasing the temperature of atmosphere?

Assertion : Mercury vapour emitting out from scrubber does not pollute environment. Reason : Scrubber cannot trap mercury vapour.

Eutrophication is caused due to

World Ozone Day is celebrated on

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

Which of the following is a secondary pollutant?

Match the items given in Column I with those in Column II and select the correct option given below: Column &ndash; I Column &ndash;II a. Eutrophication i. UV-B radiation b.

Assertion : Deforestation sequesters CO_2 from atmosphere. Reason : Global warming is beneficial for plants and human health.

Which one of the following options correctly designate the percent contribution of gases (A, B, C and D) responsible for global warming?

Assertion: Pollution is always caused by human activities. Reason: Pollution is not different from contamination.

Which one of the following combinations is incorrect?

Which one of the following statements is not valid for aerosols?

Which one of the following combinations is incorrect?

A lake which is rich in organic waste may result in

The highest DDT concentration in aquatic food chain shall occur in

Crop rotation with legume or grass pasture to improve soil structure and fertility is called,

Joint Forest Management Concept was introduced in India during:

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers?

One greenhouse gas contributes 14 \% to total global warming and another contributes 6 \% . These are respectively identified as

If the threshold for hearing increasing 1000 times, the hearing loss is

Acid rain is caused by the increase in the atmospheric concentration of :

An increase in the concentration of the toxicant at successive trophic levels is known as:

Which of the following are the most suitable indicators of S O _ 2 pollution in the environment?

Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of

Rachel Carson&#39;s famous book &#39;&#39;Silent Spring&#39;&#39; is related to:

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?

Match the following and select the correct option.

Assertion : BOD of a river polluted by sewage is more than 20 ppm . Reason : Polluted river contains excess of organic matter.

Assertion : Presence of large amounts of nutrients in water body causes excessive growth of planktonic algae. Reason : It is due to biomagnification.

If the threshold for hearing increasing 1000 times, the hearing loss is

Maximum green house gases are released by

A lake with an inflow of domestic sewage rich in organic waste may result in

In a coal fired power plant, electrostatic precipitators are installed to control emission of

The zone of atmosphere in which the ozone layer is:

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

Photochemical smog formed in congested metropolitan cities mainly consists of

Assertion : Secondary air pollutants are formed by interaction among the primary pollutants and are more toxic. Reason: DDT is a secondary air pollutant.

Maximum green house gases are released by

In a coal fired power plant, electrostatic precipitators are installed to control emission of

A lake with an inflow of domestic sewage rich in organic waste may result in

Soil salinity is measured by

The second commitment period for Kyoto Protocol was decided at:

Climate of the world is threatened by:

Which one of the following is not correct with regard to the harmful effects of particulate matter of the size 2.5 micro meters or less?

Kyoto Protocol was endorsed at

Global warming can be controlled by

The Air Prevention and Control of Pollution Act came into force in

Which of the following is not an invasive species?

A large quantity of urban sewage is drained to nearby village river. Which among the given conditions would happen after mixing of sewage into the river? (i) Biochemical oxygen

Which of the following is a secondary pollutant?

Match the items given in Column I with those in Column II and select the correct option given below: Column – I Column –II a. Eutrophication i. UV-B radiation b.

Rachel Carson's famous book ''Silent Spring'' is related to: