An increase in CO2 concentration in the atmosphere will result in

(1) Adverse effects of natural vegetation

(2) Global warming

(3) Temperature decrease in a global atmosphere

(4) Genetic disorders in plants and animals

Subtopic:  Air Pollution - Global Warming |
 93%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Domestic waste will lead to : 

1. Biodegradable pollution

2. Nondegradable pollution

3. Thermal pollution of soil

4. Air pollution

Subtopic:  Soil Pollution & Waste Management |
 83%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

The major source of BOD in the river Ganga is 

(1) Leaf litter

(2) Fishes

(3) Human waste

(4) Aquatic plants

Subtopic:  Water Pollution - Biological Oxygen Demand |
 85%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

If a lake is contaminated with DDT, it's highest concentration would be found in :

1. Primary consumer

2. Secondary consumer

3. Tertiary consumer

4. None of the above.

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

The most harmful air pollutant produced by automobiles is:

1. HNO2

2. NOX

3. SO2

4. CO

Subtopic:  Air Pollution - Global Warming |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Sewage water can be purified by

(1) Aquatic plant

(2) Microorganism

(3) Penicillin

(4) Fishes

Subtopic:  Water Pollution - Water Pollution & Portable Water |
 85%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Major pollutant in Jet plane emission is -

(1) SO2

(2) CFC

(3) CO

(4) CCl4

Subtopic:  Air Pollution - Greenhouse Effect |
 60%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

B.O.D is-

1. The amount of O2 utilized by organisms in the water. 
2. The amount of O2 utilized by microorganisms for decomposition.
3. The total amount of O2  present in water.
4. All of the above

Subtopic:  Water Pollution - Biological Oxygen Demand |
 68%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

What is the intensity of sound in normal conversation 

1. 10 -20 decibal

2. 30 - 60 decibal

3. 70 - 90 decibal

4. 120 - 150 decibal

Subtopic:  Introduction |
 60%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

Which of the following is absent in polluted water

1. Hydrilla

2. Water hyacinth

3. Larva of stone fly

4. Blue green algae

Subtopic:  Water Pollution - Biological Oxygen Demand |
 53%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints