Trees are the sink of which gas?
a) nitrogen
b) oxygen
c) carbon dioxide
d) sulphur oxide
Reforestation can reduce……..
a) water pollution
b) land pollution
c) global warming
d) all of these
…….is plantation of forest on land where there was no forest before.
a) Reforestation
b) Afforestation
c) Gardening
d) Horticulture
The addition of harmful substance in the environment is called…….
a) global warming
b) acid rain
c) ozone depletion
d) pollution
The unjustified
use of ……..has damaged environment badly.
a) water
b) resources
c) minerald
d) fuel
Which of the following is/are the major pollution causing substance/s?
a) harmful gases and dust
b) pollutants from factories and automobiles
c) sewage and use of plastics
d) all of these
by at 2024-09-24 08:14:42