Supersonic jet causes pollution by thinning of
A). O3 layer
B). O4 layer
C). SO2 layer
D). CO2 layer
O3 layer
Most commercial flights are confined to the troposphere, but high-level supersonic aircraft inject pollutants into the stratosphere, which leads to the thinning of the ozone layer. Of these nitrogen oxides are especially harmful.
1. Glass is a
3. The mass number of a nucleus is.
5. Which variety of coal contains recognizable traces of the original plant material ?
6. The chemical bahaviour of an atom depends upon
7. The constituents of automobile exhaust that can cause cancer is are :
8. Question 8.6:Why is the highest oxidation state of a metal exhibited in its oxide or fluoride only?