(a) Osmosis

(b) Ion exchange

(c) Distillation

(d) Both b and c

(a) Plants

(b) Animals

(c) Human activities

(d) None of these

(a) Ganga River

(b) Chenab River

(c) Cauvery River

(d) Yamuna River

(a) Gills

(b) Nostrils

(c) Spiracles

(d) None of the above

(a) A pair of testes are present in the 2nd segment

(b) A pair of ovaries are present in the 4th segment

(c) The thorax of a cockroach is divided into 6 segments

(d) The abdomen region of a cockroach is divided into 10 segments

(a) Spiders are venomous

(b) Spiders have eight legs

(c) Spiders have 2 division in their bodies

(d) All of the above

(a) Thorax

(b) Head

(c) Abdomen

(d) None of the above

(a) Vermi-manure

(b) Vermicast

(c) Vermicompost

(d) All of the above

(a) Sliders

(b) Crawlers

(c) Gliders

(d) None of the above

(a) Denier

(b) Dupion

(c) Hatching

(d) Stifling