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Biology class 10 Chapter 7 Man and His Environment  100 MCQs The total surroundings of an organism are called a) Ecology b) Environment c) Habitat d) Atmosphere Answer: b Which of the following is a biotic component of the environment? a) Water b) Soil c) Plants d) Air Answer: c An organism's specific role or function in its habitat is known as: a) Ecosystem b) Food chain c) Niche d) Community Answer: c The study of the relationship between organisms and their environment is a) Physiology b) Zoology c) Ecology d) Cytology Answer: c Which of these is an abiotic factor? a) Bacteria b) Light c) Plants d) Animals Answer: b A group of organisms of the same species living in the same place is called: a) Community b) Ecosystem c) Habitat d) Population Answer: d Which of the following is the ultimate source of energy for all life on Earth? a) Plants b) Sun c) Soil d) Water Answer: b The green plants in an ecosystem are a) Consume...