Question 1. Which of the following is not influenced by human activities?
(A) None of the below
(B) Increased extinction rate of species
(C) Destruction of mangroves and wetlands
(D) Depletion of groundwater
Question 2. Biosphere is __________.
(A) The sphere which occupies the maximum volume of all the spheres
(B) The thin shell of organic matter on the surface of earth comprising of all the living things
(C) The solid shell of inorganic materials on the surface of the Earth
(D) All of the above
Question 3. Which of the following is an example of the impact of development activities on the Hydrosphere?
(A) Water pollution
(B) Soil erosion
(C) Soil pollution
(D) Air pollution
Question 4. The atmosphere extends up to a height of about 10,000 km. It is divided into the following four thermal layers
The correct sequence of these layers starting from the surface of the Earth upwards is______________.
(A) 2, 4, 3, 1
(B) 4, 2, 3, 1
(C) 4, 2, 1, 3
(D) 2, 4, 1, 3
Question 5. The term ecology was introduced by ____________.
(A) Ramdeo Mishra
Question 6. Which of the following statements is not true?
(A) Respiration process releases energy
(B) Energy is recycled in an ecosystem
(C) Energy flows through the ecosystem in the form of C-C bonds
(D) Inorganic nutrients are recycled in an ecosystem
Question 7. Environmental education is important only at ?
(A) Collage stage
(B) Secondary school stage
(C) Primary school stage
(D) All stages
Question 8. Weather occurs in the Earths ____________.
Question 9. Driving force in an ecosystem is ____________.
(A) Biomass energy
(B) Solar energy
Question 10. The study of interactions between living and non-living organisms and the environment is called?
Question 11. Which of the following conceptual components of the environment are effective transporters of matter?
(A) Lithosphere and biosphere
(B) Hydrosphere and lithosphere
(C) Atmosphere and lithosphere
(D) Atmosphere and hydrosphere
Question 12. The organisms which feed on dead organisms and excreta of living organisms are known______.
Question 13. In a food chain, humans are________.
(A) Primary and secondary consumers both
(C) Primary consumer
(D) Secondary consumers
Question 14. The food chain in which microorganisms breakdown dead producers is called ____________.
(A) Detritus food chain
(B) Parasitic food chain
(C) Predator food chain
(D) Consumer food chain
Question 15. A trophic level refers to ____________.
(A) An organism’s position in a biome
(B) An organism’s position in an ecosystem
(C) An organism’s portion in a food chain
(D) Area in the tropics
Question 16. Biosphere is a term used to represent the ____________.
(A) Entire lithosphererepresenting the solid Earth and its interior
(B) A small zone of Earth, where the lithosphere, hydrosphere, and atmosphere come in contact with one another
(C) Entire hydrosphere-representing the entire collection of water over the Earth as well as inside the Earth
(D) Entire atmosphere consisting of troposphere, stratosphere, mesosphere, and thermosphere
Question 17. The environment which has been modified by human activities is called?
(A) Urban environment
(B) Modem environment
(C) Anthropogenic environment
(D) Natural environment
Question 18. Physical and chemical components of an ecosystem constitute _______.
(A) Abioltic structure
(B) Biotic structure
(C) Both of these
(D) None of these
Question 19. Which of the following is a possible producer in an ecosystem?
(B) Human being
Question 20. The objective of environmental education is ________.
(A) Create an environmental ethic that fosters awareness about ecological inter-dependence of economics, social and political
(B) To teach environmentally appropriate behaviour
(C) Raise consciousness about environmental education
(D) All of the above
Question 21. Food chain starts with ____________.
Question 22. Which one of the following is an abiotic component of the ecosystem?
Question 23. In a food chain animals constitute the ____________.
(A) Intermediate trophic level
(B) Ultimate trophic level
(C) Second trophic level
(D) First trophic level
Question 24. An ecosystem consist of ___________.
(A) Green plants, animals, decomposers and abiotic environment
(B) Producers and consumers
(C) Green plants and decomposers
(D) Green plants and animals
Question 25. Which of the following conceptual sphere of the environment is having the least storage capacity for the matter?