Question

3. Which of these methods does not result in conservation of water?
a. using drip irrigation
b. recycling of water
c. cutting vegetation so that less water is lost by transpiration
d. planting more trees
4. Which of the following is not a pollutant unless present in excess?
a. sulphur dioxide
b. carbon dioxide
c. carbon monoxide
d. nitrogen dioxide
5. Which of the following gases combines with the blood and prevents it from carrying oxygen?
a. carbon monoxide
b. carbon dioxide
c. nitrogen oxide
d. nitrogen trioxide
6. Which of these can cause acid rain?
a. carbon monoxide
b. carbon dioxide
c. sulphur dioxide
d. nitrogen​

Answer 1

Answer:

3:-d. planting more trees

4:-b. carbon dioxide

5:-b. carbon dioxide

6:-c. sulphur dioxide