science
Grade-3
Easy
Question
Match the entries of column A with those of column B.
| Column A | Column B |
| A. Deforestation |
i. Sewage |
| B. Air pollution |
ii. Cutting of trees |
| C. Water pollution |
iii. Smog |
- A – iii, B – ii, C – i
- A – ii, B – i, C – iii
- A – ii, B – iii, C – i
- A – iii, B – i, C – ii
Hint:
The deposition of dangerous compounds that contaminate soil, water, or the atmosphere, or the act or process of polluting that causes contamination.
The correct answer is: A – ii, B – iii, C – i
- The mass removal of trees or the human-caused devastation of forests.
- A particular kind of air pollution is smog. It consists of several dangerous contaminants.
- One of the biggest issues in urban areas is sewage water contamination.
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