اختبار الكتروني درس Erosion of Ozone Layer and Global Warming

1
Ozone layer locates in........layer
2
Ozone gas molecule consists of........
3
Oxygen molecule splits into two free atoms in the stratosphere layer under the effect of........
4
Scientist........proposed that the thicness of ozone layer is about 3 mm under the standard temperature and pressure
5
Ozone degree is measured in a unit called ........
6
Degree of ozone at STP condition is......Dobson
7
One Dobson unit (DU)is defined as......
8
Ozone layer absorbs .........
9
The ozone layer does not allow the passage of .......ultraviolet rays
10
Ozone layer allows 100%of the......UVrays to penetrate the Earth's atmosphere