Green manure comprises of a quick growing herbaceous crop. They are mixed with the soil to enrich the soil. They supply organic matter and also additional nitrogen.

Correct Option: B

Green manure comprises of a quick growing herbaceous crop. They are mixed with the soil to enrich the soil. They supply organic matter and also additional nitrogen.

Triticale is a man made cereale produced by crossing two generate wheat (Triticum) and rye (Secale). Hexaploid Triticale was obtained by crossing Triticum durum and Secale cereale.

Correct Option: A

Triticale is a man made cereale produced by crossing two generate wheat (Triticum) and rye (Secale). Hexaploid Triticale was obtained by crossing Triticum durum and Secale cereale.

DDT cannot be further metabolized into any stable byproduct.

Correct Option: A

DDT cannot be further metabolized into any stable byproduct.

The first transgenic crop was tobacco developed in USA in 1986, it was herbicide resistant.

Correct Option: C

The first transgenic crop was tobacco developed in USA in 1986, it was herbicide resistant.

Selection is picking up only those plants for reproduction which have desired qualities. Hybridization is crossing of two or more types of plants for bringing their traits together in the progeny. Introduction is taking a plant or a new variety from an area where it grows naturally to a region where it does not occur before.

Correct Option: A

Selection is picking up only those plants for reproduction which have desired qualities. Hybridization is crossing of two or more types of plants for bringing their traits together in the progeny. Introduction is taking a plant or a new variety from an area where it grows naturally to a region where it does not occur before.