Natural Resources Test - 9

Biosphere is the place where living organisms are found. Biosphere includes lithosphere, hydrosphere and atmosphere.

One percent reduction of ozone in ozonosphere allows 2% higher energy ultraviolet radiations to reach earth. UV radiations cause skin disease to human beings. Endoskeleton and exoskeleton of animals are formed by calcium and magnesium salts.

60% of the global greenhouse effect is due toCO₂. Ozone is highly poisonous to living things. Bacillus ramosus causes ammonification in the soil. All biochemical reactions occur in the medium of water.

Those substances that do not decompose into simpler substance by action of microbes is called non-biodegradable. DDT is a non-biodegradable substance.

To reduce the wastage of energy smokeless stoves should be used, biogas should be used and growing fuel wood trees. Biogas and smokeless stoves use the maximum energy.

Sanctuaries and national parks are established to protect the animals from human interference so that they can breed and grows in natural habitat.

The daytime temperature of moon is 110^oC due to presence of higher amount of carbon dioxide gas. During night temperature goes beyond 0^oC.

Denitrification is a microbially facilitated process where nitrate is reduced and ultimately produces molecular nitrogen (N₂) through a series of intermediate gaseous nitrogen oxide products.

The death of last individual of a species is called extinction. The species that get extinct cannot be replenished.

1. Protein is polymer of Amino acids which is a nitogenous organic compound.

2. Dead And decaying part of organic matter remain present in the top soil in form of humus.

3. Manures are the biofertilizer which donot contain any nitrogenous components hence it is biofriendly

4. Atmoshere consist of several gases like carbon dioxide which help in regulating temperature.