Pollution of Air and Water [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 7 - 13 of 17
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Question 7
Question MCQ▾
Increasing levels of Green House gases like Co2 are leading to:
Choices
Choice (4) | Response | |
---|---|---|
a. | Global warming | |
b. | Green House effect | |
c. | Air Pollution | |
d. | None of the above |
Question 8
Question MCQ▾
Pollutant used in refrigerators, air conditioners and aerosol sprays is
Choices
Choice (4) | Response | |
---|---|---|
a. | Methane | |
b. | CFC՚s | |
c. | Oxides of nitrogen | |
d. | None of the above |
Question 9
Question MCQ▾
Green House gases create
Choices
Choice (4) | Response | |
---|---|---|
a. | Pollution | |
b. | Acid rain | |
c. | Green House effect | |
d. | Question does not provide sufficient data or is vague |
Question 10
Question MCQ▾
GAP is a:
Choices
Choice (4) | Response | |
---|---|---|
a. | Garbage Action plan | |
b. | Ganga action plan | |
c. | Ground water pollution | |
d. | Ground water Action Plan |
Question 11
Question MCQ▾
Water gets polluted due to:
Choices
Choice (4) | Response | |
---|---|---|
a. | Indirect sources | |
b. | Direct sources | |
c. | Both a. and b. are correct | |
d. | None of the above |
Question 12
Question MCQ▾
Air pollution is defined as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Contamination of air by impurities | |
b. | Addition of unwanted and harmful substances in the air | |
c. | Question does not provide sufficient data or is vague | |
d. | All of the above |
Question 13
Question MCQ▾
The substances which contaminate the air are called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Air pollutants | |
b. | Methane, Radon gas | |
c. | Dust particles, Smoke and carbon monoxide | |
d. | Volcanic activities |