In Kerala & Assam tropical forests are highly productive terrestrial ecosystem.

Correct Option: C

In Kerala & Assam tropical forests are highly productive terrestrial ecosystem.

Xeric environment is found in deserts where temperature remains high in the day and low during the night and air humidity is very low.

Correct Option: B

Xeric environment is found in deserts where temperature remains high in the day and low during the night and air humidity is very low.

Stenohaline : Steno meaning narrow and haline meaning salt. A fish cannot handle a wide fluctuation in salt content in water. Many fresh water fish tend to be stenohaline and die in environments of high salinity such as the ocean. Fish living in coastal estuaries and tide pools are often euryhaline (tolerant to changes in salinity) as are many species which have life cycle requiring tolerance to both fresh water and sea water environments such as Salmon.

Correct Option: A

Stenohaline : Steno meaning narrow and haline meaning salt. A fish cannot handle a wide fluctuation in salt content in water. Many fresh water fish tend to be stenohaline and die in environments of high salinity such as the ocean. Fish living in coastal estuaries and tide pools are often euryhaline (tolerant to changes in salinity) as are many species which have life cycle requiring tolerance to both fresh water and sea water environments such as Salmon.

Succulent plants are fleshy xerophytes, which can grow in low water level area (desert). That is why, they are called as desert plants.

Correct Option: B

Succulent plants are fleshy xerophytes, which can grow in low water level area (desert). That is why, they are called as desert plants.

Loam soil is best suited for plant growth because it possesses good aeration, nutritive salts and good water retaining capacity.

Correct Option: B

Loam soil is best suited for plant growth because it possesses good aeration, nutritive salts and good water retaining capacity.