Worksheetsprep 2 , unit 2 , lesson 1.1
Total questions: 9
Worksheet time: 5mins
Ozone layer is located in .......... layer.
troposphere
stratosphere
mesosphere
thermosphere
Ozone gas molecule consists of ...........
four oxygen atoms.
two oxygen atoms.
three oxygen atoms.
one oxygen atom.
Oxygen molecule splits into two free atoms in the stratosphere layer under the effect
heat.
Dobson.
infrared radiations.
ultraviolet radiations.
Scientist ......... proposed that the thickness of ozone layer is about 3 mm under the standard temperature and pressure.
Newton
Edeson
Dobson
Watson
Ozone degree is measured in a unit called
km.
DDopson
mm³
nm.
One Dobson unit is defined as
3 mm.
0.1 mm.
0.01 mm.
0.001 mm.
Ozone layer absorbs
infrared rays.
ultraviolet rays.
X-ray.
light rays.
The ozone layer does not allow the passage of all ultraviolet rays.
far
medium
near
normal
Ozone layer allows 100% of the........... UV rays to penetrate the Earth's atmosphere.
far
medium
near
normal
