Question: 1 Which one of the following energy is most utilized in biomass?
(A) Tidal energy
(B) Geothermal energy
(C) Solar energy
(D) Atomic energy
Ans: C Solar energy
Question: 2 Which one of the following is a part of Geological cycle?
(A) Hydrological cycle
(B) Nitrogen cycle
(C) Hydrogen cycle
(D) Carbon cycle
Ans: A Hydrological cycle
Question: 3 An artificial ecosystem is represented by
(A) Aquarium
(B) Agriculture land
(C) Pisciculture tank
(D) Zoo
Ans: A Aquarium
Question: 4 Global warming is caused due to the emission of
(A) Hydrocarbon
(B) Carbon monoxide
(C) Carbon dioxide
(D) Nitrogen
Ans: C Carbon dioxide
Question: 5 Which of the following is designated as the “lungs of the world”?
(A) Equatorial evergreen forests
(B) Taiga forests
(C) Mid-latitudes mixed forests
(D) Mangrove forests
Ans: A Equatorial evergreen forests
Question: 6 The maximum biodiversity is found in
(A) Arctic forests
(B) Tropical rain forests
(C) Temperate forests
(D) Coniferous forests
Ans: B Tropical rain forests
Question: 7 Among the biotic components of the ecosystem the producer system is
(A) Green plants
(B) Tiger
(C) Cow
(D) Peacock
Ans: A Green plants
Question: 8 The Ozone layer restricts
(A) Ultraviolet radiation
(B) X-rays and Gamma rays
(C) Infrared radiation
(D) Visible light
Ans: A Ultraviolet radiation
Question: 9 What term denotes the organisms getting their food from others?
(A) Autotrophs
(B) Heterotrophs
(C) Synthesizers
(D) Producers
Ans: B Heterotrophs
Question: 10 Which of the following components of ecosystem acts as intermediator between biotic and abiotic components?
(A) Habitat
(B) Decomposer
(C) Consumer
(D) Producer
Ans: D Producer