Match the terms in Column I with suitable terms in Column II

Column I	Column II
a. The rate at which organic molecules are formed in green plant	1. Secondary productivity
b. The ultraviolet rays are absorbed	2. Gross primary productivity
c. The rate of increase in the biomass of heterotrophs	3. Ozone layer
d. Ten percent law	4. Cycle of matter
e. The exchange of materials between the living of non-living world	5. Lindemann's law

Solution(By Examveda Team)

a. The rate at which organic molecules are formed in green plants is Gross primary productivity. This is measure of total assimilation of light energy into living matter of the plant (biomass).

b. The ultraviolet rays are absorbed by ozone layer. Ozone is a particularly effective absorber of UV radiation. As the ozone layer gets thinner, the protective filter activity of the atmosphere is progressively reduced.

c. The rate of increase in the biomass of heterotrophs is Secondary productivity. The productivity of heterotrophs, such as animals, is called secondary productivity.

d, Ten percent law is Lindemann's law. In the transfer of organic matter/energy from one trophic level to the next, only about 10% of the energy is transferred. The remaining is lost during transfer or broken down in respiration.

e. The exchange of materials between the living of non-living worlds is cycle of matter. Cycles of matter are called biogeochemical cycles, because they include both biotic and abiotic components and processes. Components that hold matter for short periods are called exchange pools.