Forestry

Has been responsible for increasing the average global temperature in recent

Is advantageous since it supplies O2 for people travelling in jets

Hinders higher rate of photosynthesis

Helps in checking the penetration of ultra violet rays to earth

Air

Surface or ground

Both (a) & (b)

None of these

Ecosystem

Ecosom

Biosphere

Biocoenosis

Peroxy acetyl nitrate

Peroxy acyl nitrite

Pyridine aceto-nitrite

Peroxy aceto-nitrile

Trophic

Eutrophic

Oligotrophic

Euphotic

1936

1938

1939

1940

Carbohydrates in plants

Biomass

Solar energy

Producers

Grow in desert or dry, hot, sandy place with scanty rainfall

A desert habitant is characterized by Blarcity of water in soil, extremely dry intense light, high temp and strong winds

Both (a) & (b)

None of these

Spongy paraenchyma

Well developed conducting tissue

Well developed mechanical tissue

Thick cuticle

Pak-Indian Border

Some parts of Cholistan

Both (a) & (b)

None of these