Effects of Global Warming

Q.

Large-scale deforestation leads to a decrease in the amount of gas A in the atmosphere whereas the amount of gas B increases. The increased amount of gas B in the atmosphere causes an effect C which leads to excessive heating of the earth and its atmosphere producing an undesirable phenomenon D. What are A, B, C and D?

Q. Among the following options which one is an effect of global warming but not a cause of global warming?

1. Air pollution
2. Chlorofluorocarbon emissions
3. Greenhouse effect
4. Depletion of ozone layer

Q. Large scale deforestation leads to the decrease in the amount of gas A in the atmosphere whereas the amount of gas B increases. The increased amount of gas B in the atmosphere causes an effect C which leads to excessive heating of the earth and its atmosphere producing an undesirable phenomenon D. What are A, B, C and D ?​

Q.

Which of the following are true regarding $C{O}_2$?
a. Excess of $C{O}_2$ acts as a pollutant.
b. Plants take in $C{O}_2$ for photosynthesis.
c. Deforestation leads to decrease in the amount of $C{O}_2$ in air.
d. Less quantity of $C{O}_2$ causes rise in temperature.

1. a and b

2. a, b and d

3. a, b and c

4. b and c

Q.

Why is the greenhouse effect bad?