Essential for Life - Air & Water Worksheet-5
Multiple-Choice Question:
(A) Oxygen (B) Nitrogen (C) Carbon dioxide
(A) Troposphere (B) Exosphere (C) Thermosphere
(A) Air pressure (B) Liquid pressure (C) Both of these
(A) Insoluble impurities
(B) Soluble impurities
(C) None of these
(A) Condensation (B) Evaporation (C) Melting
(A) Sedimentation (B) Decantation (C) Loading
(A) It promotes the growth of micro-organism in swimming pools
(B) It is a strong disinfectant and good for health
(C) It is a mild disinfectant which inhibit the growth of micro-organisms in the swimming pools
(A) Filtration (B) Sedimentation (C) Decantation
(A) Lesser
(B) Greater
(C) Pressure remains constant at both the places
Multiple Choice Questions (with more than one option):
(A) Exosphere (B) Core (C) Mantle
(D) Stratosphere (E) Troposphere
(A) Pollution (B) Green house effect
(C) Ozone depletion (D) Economic growth
(E) None of these
Answer Key:
(1)-(B); (2)-(A); (3)-(A); (4)-(B); (5)-(C); (6)-(B); (7)-(C); (8)-(A); (9)-(A); (10)-(A,D,E); (11)-(A,B,C)