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Geography 11 || Menu

MCQ Geography Class 11
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MCQ Life on The Earth Chapter 15 Class 11 Geography – III

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1. How many types of biogeochemical cycles are there?

A.) Two types

B.) Three types

C.) Four types

D.) Six types

Question 1 of 20

2. Gaseous cycle and sedimentary cycle are types of what?

A.) Biological cycle

B.) Biochemical cycle

C.) Chemical cycle

D.) None of the above

Question 2 of 20

3. What is the source of gaseous cycle?

A.) Ocean

B.) Earth

C.) Environment

D.) Ecology

Question 3 of 20

4. What is the source of sedimentary cycle?

A.) Soil, sediments, rocks

B.) Gases, soil

C.) Soil, water

D.) None of the above

Question 4 of 20

5. What is it called to a cycle of water maintained by all living being in the atmosphere and lithosphere?

A.) Atmospheric cycle

B.) Lithospheric cycle

C.) The water cycle

D.) The hydrological cycle

Question 5 of 20

6. In which of the following are the organic compounds starch cellulose and sucrose accumulated?

A.) In plants

B.) Carbon

C.) Starch

D.) Aquatic

Question 6 of 20

7. What is the byproduct of photosynthesis?

A.) Hydrogen monoxide

B.) Carbon dioxide

C.) Oxygen

D.) Hydrogen

Question 7 of 20

8. What percentage of nitrogen gas is in the atmosphere?

A.) 78 percent

B.) 70 percent

C.) 60 percent

D.) 45 percent

Question 8 of 20

9. Which of the following organisms can absorb nitrogen directly?

A.) Soil bacteria – blue-green algae

B.) Germs

C.) Microorganisms

D.) Animals

Question 9 of 20

10. What percentage of nitrogen is biological?

A.) 90 percent

B.) 80 percent

C.) 40 percent

D.) 20 percent

Question 10 of 20

11. Which of the following is compounded by lightning or cosmic radiation in the atmosphere?

A.) Nitrogen

B.) Carbon

C.) Oxygen

D.) Steam

Question 11 of 20

12. Which of the following is the process of converting nitrate back into free nitrogen?

A.) De nitrification

B.) Nitrate

C.) Oxidation

D.) Carbon

Question 12 of 20

13. Which of the following minerals is mainly obtained in primary form?

A.) In inorganic form

B.) In organic

C.) Nitrite

D.) Phosphorus

Question 13 of 20

14. Imbalances in which of the following cause natural calamities floods earthquakes disease climate change?

A.) Environmental imbalance

B.) The rain

C.) The heat

D.) Steam

Question 14 of 20

15. Who among the following is included in biosphere?

A.) All living things

B.) Only plants

C.) Only animals

D.) All living and non-living things

Question 15 of 20

16. Tropical grasslands are known by which of the following names?

A.) Stappy

B.) Prairie

C.) Savannah

D.) No one

Question 16 of 20

17. Which of the following forms when iron and oxygen combine with iron found in rocks?

A.) Iron carbonate

B.) Iron oxide

C.) Iron nitrate

D.) Iron sulfate

Question 17 of 20

18. Carbon dioxide in the presence of light combines with water to form which of the following during the synthesis process?

A.) Protein

B.) Amino acid

C.) Carbohydrates

D.) Vitamins

Question 18 of 20

19. Sun is the primary source of one of the following?

A.) Energy

B.) Helium

C.) Cold

D.) Heat

Question 19 of 20

20. Which of the following decompositions depend on each level?

A.) On the deceased

B.) On the water

C.) On plants

D.) On germs

Question 20 of 20

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