Practice Quiz set 2 - indian geography mcq Online Quiz (set-1) For All Competitive Exams
Q-1) Source of energy in ecosystem is
(a)
(b)
(c)
(d)
An ecosystem is a community of living and nonliving things that work together. It includes soil, atmosphere, heat and light from the sun, water and living organisms.
Q-2) Which of the following metals contribute to to biomagnification problem in the ecosystem ?
(a)
(b)
(c)
(d)
Mercury causes biomagnification problem in the ecosystem.
Q-3) What is the percentage coverage of Tropical Forest on earth’s landmass ?
(a)
(b)
(c)
(d)
Although tropical forests cover less than 7% of the earth’s surface they are home to approximately 50% of all living things on earth.
Q-4) After which one of the following tribes of India, has a large continent of ancient geological history of the world been named?
(a)
(b)
(c)
(d)
In paleo-geography, Gondwana, originally Gondwanaland, was the southernmost of two supercontinents that were part of the Pangaea supercontinent. It existed from approximately 510 to 180 million years ago.
It included most of the landmasses in today's Southern Hemisphere, including Antarctica, South America, Africa, Madagascar and the Australian continent, as well as the Arabian Peninsula and the Indian subcontinent, which have now moved entirely into the Northern Hemisphere.
Q-5) Taiga means :
(a)
(b)
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(d)
Taiga is a biome characterized by coniferous forests consisting mostly of pines, spruces and larches. It is the world’s largest terrestrial biome.
Q-6) An artificial ecosystem is represented by :
(a)
(b)
(c)
(d)
An artificial ecosystem is one created by people. You can create an artificial ecosystem in an aquarium or terrarium. Nathaniel Bagshaw Ward is credited as the inventor of the terrarium, which he accidently created in 1829.
Q-7) Which is the most stable ecosystem?
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An ecosystem can be natural or man-made, large or small, permanent or temporary, complete or incomplete. Natural ecosystem.
It is an ecosystem developed under natural conditions without any appreciable human interference. A natural ecosystem can be terrestrial (e.g., forest, desert, grassland) or aquatic (e.g., freshwater, lake, pond, river, sea). Oceans constitute the most stable ecosystem.
Q-8) Which of the following exhibits unidirectional flow in an ecosystem?
(a)
(b)
(c)
(d)
Energy enters an ecosystem by being used to convert low-energy carbon dioxide into high-energy carbohydrate, then passes through one or more of the organisms of the community, and is then lost to the ecosystem.
Eventually, all of the energy that enters the ecosystem is lost in the form of heat.
Q-9) All the ecosystems taken together in a geographical area form a bigger unit called:
(a)
(b)
(c)
(d)
Biome is a large naturally occurring community of flora and fauna adapted to the particular conditions in which they occur. For example, Tundra region.
Q-10) Which of the following exhibits unidirectional flow in an ecosystem?
(a)
(b)
(c)
(d)
Ecosystems contain essentially two kinds of commodities: matter (nutrients) and energy. Material nutrients cycle through the biotic and abiotic parts of the ecosystem, available for repeated use by the organisms in the ecosystem's community.
However, energy enters an ecosystem by being used to convert low-energy carbon dioxide into high-energy carbohydrate, then passes through one or more of the organisms of the community, and is then lost to the ecosystem.
Eventually, all of the energy that enters the ecosystem is lost in the form of heat.