Ozone layer protects the earth from which of the following radiations?
a) alpha radiations
b)beta radiation
c) ultraviolet radiation
d) gamma radiation
Which of the following are the main diseases caused by ultraviolet radiation?
a) skin cancer
b) eye diseases
c) headache
d) all of these
Average Height of stratosphere is…….
a) 12 Km
b) 29 Km
c) 48 Km
d) none of these
Which layer of the atmosphere contains the ozone layer?
a) Stratosphere
b) Mesosphere
c) Troposphere
d) Thermosphere
Which of the following is responsible for the rise in temperature in the stratosphere?
a) position of stratosphere
b) height of stratosphere
c) ozone
d) sunlight
The hole in……….layer is causing cancer.
a) Nitrogen
b) CO2
c) Ozone
d) Oxygen
