Q. Name the largest terrestrial community of plants and animals in interaction with the environment
✅ Correct Answer: (A)
biome
Life on the Earth MCQs with answers
Dear candidates you will find MCQ questions of 11th Class - Geography | Chapter: Life on the Earth here. Learn these questions and prepare yourself for coming examinations. You can check the right answer of any question by clicking the option or by clicking view answer button.
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Q. Which biome supports the greatest variety of hoofed herbivore species?
✅ Correct Answer: (B)
tropical Savanna
Q. The type of soil the desert biome has is
✅ Correct Answer: (B)
Rich in nutrients with little organic matter
Q. When various plants and animal species have got adapted through evolution is called
✅ Correct Answer: (A)
Ecological adaptation
Q. The boundaries of different biomes on land are determined mainly by
✅ Correct Answer: (A)
Climate
Q. Which of the following in biology is the energy currency of cells?
✅ Correct Answer: (C)
ATP
Q. The interacting system of the biotic community and the physical environment is known as
✅ Correct Answer: (A)
ecosystem
Q. Which of the following organism have parasitic mode of nutrition?
✅ Correct Answer: (B)
Plasmodium
Q. Which one of the following is not related to the formation or modification of the present atmosphere?
✅ Correct Answer: (C)
Differentiation
Q. The oceans were formed within __________ from the formation of the earth.
✅ Correct Answer: (A)
500 million years ago
Q. Which one of the following experts gave the nebular hypothesis?
✅ Correct Answer: (B)
Lalpace
Q. Which one of the following experts gave the Collision Hypothesis?
✅ Correct Answer: (D)
Sir James and Harold Jeffrey
Q. The northern part of India lies in which of the following zones?
✅ Correct Answer: (B)
Warm Temperate region
Q. A very small portion of the sunlight received on the earth is used in photosynthesis. What percent is it?
✅ Correct Answer: (C)
Only 0.1 percent
Q. Which of the following is included in secondary consumers?
✅ Correct Answer: (B)
Herbivores
Q. Which of the following is included in primary consumers?
✅ Correct Answer: (A)
Carnivores
Q. Ecosystems are of two types. These are
✅ Correct Answer: (A)
Terrestrial and aquatic ecosystem
Q. Which of the following is included in biotic factors?
✅ Correct Answer: (D)
All of the above
Q. Each step in the food chain of organisms is known as
✅ Correct Answer: (A)
trophic level
Q. The shallow zone of life at the earth’s surface is known as
✅ Correct Answer: (B)
biosphere
Q. Which one is the geochemical element of the biosphere?
✅ Correct Answer: (D)
all of these
Q. Which element is the essential constituent of amino acids, nucleic acids, proteins, etc.?
✅ Correct Answer: (C)
nitrogen
Q. By which process the bacteria converts nitrates into free nitrogen
✅ Correct Answer: (D)
denitrification
Q. All living organisms maintain circulation of water in solid, liquid or gaseous state, referred to as
✅ Correct Answer: (B)
hydrologic cycle
Q. Which is a plant and animal community that covers a large geographical area?
✅ Correct Answer: (B)
Biome
Q. Which of the following organism have a parasitic mode of nutrition?
✅ Correct Answer: (B)
Plasmodium
Q. The sun-loving woody climbers on trees, espcially in tropical rain forests are known as
✅ Correct Answer: (A)
lianas
Q. Give the name to the negative interaction of organisms within the biotic environment
✅ Correct Answer: (B)
competition
Q. The mutually beneficial association of two dissimilar organisms is known as
✅ Correct Answer: (A)
mutualism
Q. When various plants and animal species have got adapted through evolution is called:
✅ Correct Answer: (A)
Ecological adaptation
Q. Name the second order consumers like tiger which depend on flesh for food
✅ Correct Answer: (B)
carnivores
Q. Very less rainfall and high rate of evaporation is a feature of which type of biome?
✅ Correct Answer: (B)
Desert biome
Q. During photosynthesis, carbon dioxide combines with water in the presence of sunlight to form:
✅ Correct Answer: (C)
Carbohydrates
Q. Oxygen combines with iron found in the rocks to form:
✅ Correct Answer: (B)
Iron oxides
Q. Which one of the following is included in biosphere?
✅ Correct Answer: (D)
All living and non-living organisms
Q. Give the name to the negative interaction of organisms within the biotic environment:
✅ Correct Answer: (B)
competition
Q. The green plants which produce carbohydrates by photosynthesis are known as
✅ Correct Answer: (A)
producers
Q. The shallow zone of life at the earth’s surface is known as
✅ Correct Answer: (B)
biosphere
Q. The shallow zone of life at the earth’s surface is known as
✅ Correct Answer: (B)
biosphere
Q. By which process the bacteria converts nitrates into free nitrogen
✅ Correct Answer: (D)
denitrification
Q. The shallow zone of life at the earth’s surface is known as
✅ Correct Answer: (B)
biosphere
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