Q9 of 56 Page 79

The nitrogen molecules present in air can be converted into nitrates and nitrites by

Nitrogen fixation is a process by which nitrogen in the Earth's atmosphere is converted into ammonia (NH3) or other molecules available to living organisms. Atmospheric nitrogen or molecular dinitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds.

More from this chapter

All 56 →
7

Rainfall patterns depend on

 8

Among the given options, which one is not correct for the use of large amount of fertilisers and pesticides?

 10

One of the following processes is not a step involved in the water-cycle operating in nature

 11

The term “water-pollution” can be defined in several ways. Which of the following statements does not give the correct definition?