Q 1 – Name the largest terrestrial community of plants and animals in interaction with the
environment
(a) biome
(b) forest
(c) ecosystem
(d) none of these
(a) biome
Q 2 – Name the famous animal of savanna of Australia
(a) monkey
(b) giraffe
(c) kangaroos
(d) none of these
(c) kangaroo
Q 3 – Which biome supports the greatest variety of hoofed herbivore species?
(a) savanna
(b) tropical Savanna
(c) taiga
(d) tundra
(b) tropical Savanna.
Q 4 – The other name of Mediterranean scrub forest is
(a) chapparal
(b) prairies
(c) grassland
(d) none of these
(a) chapparal.
Q 5 – Name the grassland of South Africa
(a) steppes
(b) prairies
(c) chapparal
(d) velds
(d) velds
Q 6 – Name the tropical forest in India
(a) tundra
(b) tarai
(c) steppes
(d) none of these
(b) tarai.
Q 8 – The sun-loving woody climbers on trees, espcially in tropical rain forests are known as
(a) lianas
(b) grassland
(c) velds
(d) tarai
(a) lianas.
Q 9 – The interacting system of the biotic community and the physical environment is known as
(a) ecosystem
(b) biosphere
(c) biome
(d) none of these
(a) ecosystem
Q 10 – Name the multicellular animal consumers
(a) animalia
(b) annelida
(c) homosapiens
(d) none of these
(a) animalia
Q 11 – The imbalance in ecosystem is caused by
(a) man
(b) natural disasters
(c) both of these
(d) none of these
(c) both of these
Q 12 – Give the name to the negative interaction of organisms within the biotic environment:
(a) succession
(b) competition
(c) interrelation
(d) none of these
(b) competition.
Q 13 – The mutually beneficial association of two dissimilar organisms is known as
(a) mutualism
(b) food web
(c) pyramid
(d) food chain
(a) mutualism
Q 14 – What name is given to the network of food chains?
(a) pyramid
(b) tropical levels
(c) food levels
(d) food web
(d) food web
Q 15 – Name the second order consumers like tiger which depend on flesh for food
(a) herbivores
(b) carnivores
(c) producers
(d) none of these
(b) carnivores.
Q 16 – The green plants which produce carbohydrates by photosynthesis are known as
(a) producers
(b) herbivores
(c) both of them
(d) none of them
(a) producers.
Q 17 – Each step in the food chain of organisms is known as
(a) trophic level
(b) pyramid
(c) food chain
(d) none of these
(a) trophic level
Q 18 – Name the multicellular decomposers
(a) algae
(b) fungi
(c) mosses
(d) none of these
(b) fungi.
Q 19 – The shallow zone of life at the earth’s surface is known as
(a) atmosphere
(b) biosphere
(c) hydrosphere
(d) none of these
(b) biosphere.
Q 20 – Which one is the geochemical element of the biosphere?
(a) nitrogen
(b) oxygen
(c) carbon
(d) all of these
(d) all of these.
Q 21 – Which element is the essential constituent of amino acids, nucleic acids, proteins, etc.?
(a) oxygen
(b) carbon
(c) nitrogen
(d) none of these
(c) nitrogen.
Q 22 – By which process the bacteria converts nitrates into free nitrogen
(a) nitrification
(b) photosynthesis
(c) nitration
(d) denitrification
(d) denitrification.
Q 23 – All living organisms maintain circulation of water in solid, liquid or gaseous state, referred to as
(a) hydrologic cycle
(b) carbon cycle
(c) oxygen cycle
(d) water cycle
(a) hydrologic cycle.
(a) hydrologic cycle.
Q 24 – How many types of biogeochemical cycles are there?
(a) three
(b) two
(c) four
(d) none of these
(b) two
Q 25 – Name the main by-product of photosynthesis
(a) carbon
(b) hydrogen
(c) oxygen
(d) water
(c) oxygen.
Q 26 – Oxygen combines with nitrogen to form
(a) nitrates
(b) nitrogen oxide
(c) both of them
(d) none of these
(c) both of them.
Q 27 – The type of soil the desert biome has is
(a) Porous with thin layers of humus
(b) Rich in nutrients with little organic matter
(c) Acidic, poor in nutrients
(d) Fertile alluvial
(b) Rich in nutrients with little organic matter
Q 28 – When various plants and animal species have got adapted through evolution is called:(a) Ecological adaptation
(b) Hydrological adaptation
(c) Homological adaptation
(d) None of the above
(a) Ecological adaptation
Q 29 – Mineral salts come directly from
(a) Earth crust
(b) Water cycle
(c) Atmosphere
(d) Forest biome
(a) Earth crust
Q 30 – The boundaries of different biomes on land are determined mainly by
(a) Climate
(b) Temperature
(c) Human activities
(d) Humidity
(a) Climate
Q 31 – Which includes all the living components of the earth.
(a) Hydrosphere
(b) Atmosphere
(c) Biosphere
(d) Lithosphere
(c) Biosphere
Q 32 – A freshwater ecosystem is
(a) Oceans
(b) Estuaries
(c) Coral reefs
(d) Marshes
(d) Marshes
Q 33 – Which is a plant and animal community that covers a large geographical area?
(a) Biosphere
(b) Biome
(c) Marshes
(d) Prairies
(b) Biome
Q 34 – Abiotic factors include
(a) Producers
(b) Consumers
(c) Decomposers
(d) Sunlight
(d) Sunlight
Q 35 – Which of the following organism have a parasitic mode of nutrition?
(a) Penicillium
(b) Plasmodium
(c) Paramecium
(d) Parrot.
(b) Plasmodium
Q 36 – The earliest man on the earth is known as:
(a) Homoerectus
(b) Homosapien
(c) Homophobic
(d) None of the above
(b) Homosapien
Q 37 – Freshwater ecosystem includes
(a) Oceans
(b) Coastal estuaries
(c) Coral reefs
(d) Streams
(d) Streams
Q 38 – Which one of the following is included in biosphere?
(a) Only plants
(b) All living and non-living organisms
(c) Only animals
(d) All living organisms
(b) All living and non-living
Q 39 – Tropical grasslands are also known as:
(a) The prairies
(b) The savannas
(c) The steppes
(d) None of the above
(b) The savannas
Q 40 – Oxygen combines with iron found in the rocks to form:
(a) Iron carbonate
(b) Iron nitrites
(c) Iron oxides
(d) Iron sulphate.
(e) Iron oxides
Q 41 – During photosynthesis, carbon dioxide combines with water in the presence of sunlight to form:
(a) Proteins
(b) Amino acids
(c) Carbohydrates
(d) Vitamins.
(c) Carbohydrates.
Q 42 – Which of the following is not a type of biome?
(a) Forest biome
(b) Desert biome
(c) Aquatic biome
(d) Sundri biome.
(d) Sundri Biome