1.

Question : Choosethe incorrect statement(A) The Montreal protocol is associated with the control of emission of ozone depleting substances(B) Methane and carbon dioxide are greenhouse gases(C) Dobson units are used to measure oxygencontent of air(D) Use of incinerators is crucial to disposal of hospital wastes

Answer»

The Montreal PROTOCOL is associated with the control of emission of ozone depleting substances 
Methane and carbon dioxide are greenhouse gases 
Dobson units are USED to measure oxygencontent of air 
Use of INCINERATORS is CRUCIAL to disposal of hospital wastes 

Solution :The thickness of ozone is measured in TERMS of Dobson Units (DU). It is 0.01 mm in thickness at STP. In stratosphere ozone gas is continuously formed by the action of ultraviolet rays on molecular oxygen & also degraded into molecular oxygen.
`O_(3)hArr O_(2)+[O]`


Discussion

No Comment Found