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361.

In dry regions, the leaf size of a tree becomes smaller. It is so to
(a)Reduce metabolism
(b)Maintain natural growth
(c)Reduce transpiration
(d)Protect plant from animals
Comment
Answer is: CNA

362.

Which is the main constituent of Biogas?
(a)Carbon dioxide
(b)Methane
(c)Hydrogen
(d)Nitrogen dioxide
Comment
Answer is: BNA

363.

Which of the following gas do not considered as polluting agent of air?
(a)CO2
(b)CO
(c)NO2
(d)SO2
Comment
Answer is: ANA

364.

Eco-mark is given to an Indian product which is
(a)Rich in protein
(b)Environment
(c)Economically viable
(d)Pure and unadulterated
Comment
Answer is: BNA

365.

Workers of paint industry are exposed to which one of the following hazards?
(a)Nickel pollution
(b)Cadmium pollution
(c)Strontium pollution
(d)Lead pollution
Comment
Answer is: DNA

366.

Van Mahotsav is associated with
(a)Cutting trees
(b)Planting trees
(c)Increase in crop
(d)Protection of plants
Comment
Answer is: BNA

367.

Crop shown soon after the onset of south-West monsoon in India is called
(a)Rabi
(b)Kharif
(c)Rainfed
(d)Dry farming
Comment
Answer is: BNA

368.

The major combustible component of gobar (cow dung) gas is
(a)Methane
(b)Carbon dioxide
(c)Hydrogen
(d)Propane
Comment
Answer is: ANA

369.

Which one among the following group of items contains only biodegradable items?
(a)Wood, grass, plastic
(b)Wood, grass, leather
(c)Fruit peels, lime juice, china clay cup
(d)Lime juice, grass, polystyrene cup
Comment
Answer is: BNA

370.

Xerophytes thrive in
(a)Hot and arid conditions
(b)Cool and wet conditions
(c)Hot and wet conditions
(d)Cool and arid conditions
Comment
Answer is: ANA

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