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Previous year question hub

Environmental Issues - Botany - Biology Previous Year Questions

Practice Environmental Issues - Botany - Biology previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

2Papers
1Years
6Questions
1Topics

Environmental Issues question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Environmental Issues. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 6 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 6 100%

Subject weightage

Top subjects by unique question coverage.

Biology
6 Qs

Most asked topics

Top topics across the included previous year papers.

Botany
6 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Environmental Issues
6 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

MHT CET (PCB) 2025 9th April Evening Shift
3 Qs
MHT CET (PCB) 2025 9th April Morning Shift
3 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
MHT CET (PCB) 2025 9th April Evening Shift20253View paper
MHT CET (PCB) 2025 9th April Morning Shift20253View paper

All Environmental Issues previous year questions

Practice every matching question in batches of 20, with every available option.

1
2025 · Biology · Botany · Environmental Issues
MHT CET (PCB) 2025 9th April Evening Shift

The purpose of biological treatment of sewage is to __________ .

A

reduce its BOD

B

increase its BOD

C

reduce sedimentation

D

increase sedimentation

Open complete paper
2
2025 · Biology · Botany · Environmental Issues
MHT CET (PCB) 2025 9th April Evening Shift

Noise can cause the following EXCEPT __________.

A

sleeplessness

B

decreased heartbeat

C

altered breathing pattern

D

psychological stress

Open complete paper
3
2025 · Biology · Botany · Environmental Issues
MHT CET (PCB) 2025 9th April Evening Shift

'Algal bloom' mainly includes _________ .

A

red algae

B

green algae

C

brown algae

D

blue-green algae

Open complete paper
4
2025 · Biology · Botany · Environmental Issues
MHT CET (PCB) 2025 9th April Morning Shift

Given below are two statements.

Statement I - Thickness of ozone is more above the poles than at the equator.

Statement II - The 'ozone holes' are generally found in Antarctic region.

In the light of above statements, select the correct option given below:

A

Both statement I and statement II are correct.

B

Both statement I and statement II are incorrect.

C

Statement I is correct but statement II is incorrect.

D

Statement I is incorrect but statement II is correct.

Open complete paper
5
2025 · Biology · Botany · Environmental Issues
MHT CET (PCB) 2025 9th April Morning Shift

Match the Column I with Column II with reference to biomagnification of DDT.

Column (I)
(Organism)		 Column (II)
(DDT content)
i. Small fishes a. 0.04 ppm
ii. Fish eating Birds of Prey b. 0.5 ppm
iii. Large fishes c. 25 ppm
iv. Zooplankton d. 2.ppm
Choose the correct option:
A

i-b, ii -d, iii -c, iv -a

B

i-b, ii -c, iii -d, iv -a

C

i-c, ii-b, iii-a, iv-d

D

i-d, ii -b, iii - c, iv -a

Open complete paper
6
2025 · Biology · Botany · Environmental Issues
MHT CET (PCB) 2025 9th April Morning Shift

    The quantity of CO and hydrocarbons in the exhaust of a motor vehicle can be reduced by installing ____________ in it.

    i. a scrubber

    ii. an electrostatic precipitator

    iii. a catalytic converter

    Select the correct option:

A

iii only

B

ii and iii

C

i only

D

i and ii

Open complete paper