Which of the following is the form of oxygen?
a) Nitrogen
b) CO2
c) Ozone
d) none of these
A layer located in stratosphere which absorbs ultraviolet rays of Sun called………
a) E-layer
b) Ozone layer
c) F-layer
d) D-layer
Plant life and aquatic ecosystem was also affected by…
a) UV radiation
b) beta radiation
c) alpha radiation
d) none of these
Which of the following are the main causes for the destruction of ozone layer?
a) chlorofluorocarbons
b) air conditioners
c) both a & b
d) none of these
Human activities contribute to the thinning of ozone layer which is often called as………..
a) ozone depletion
b) ozone layer
c) oozone enlargement
d) zone uptick
When Montreal Protocol landmark treaty to reduce CFCs and Ozone Depleting Substances (ODs)?
a) 1887
b) 1932
c) 1987
d) 2003
