Class 11 Geography MCQ Chapter 23 Living World and Ecosystem Solutions English Medium to each chapter is provided in the list so that you can easily browse through different chapters Class 11 Geography MCQ Chapter 23 Living World and Ecosystem Question Answer and select need one. AHSEC Class 11 Geography MCQ Chapter 23 Living World and Ecosystem Question Answer in English Download PDF. AHSEC Class 11 Elective Geography MCQs English Medium.
Class 11 Geography MCQ Chapter 23 Living World and Ecosystem
Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. AHSEC Class 11 Elective Geography Multiple Choice Solutions are part of All Subject Solutions. Here we have given AHSEC Class 11 Elective Geography Objective Type Question Answer in English for All Chapters, You can practice these here.
Living World and Ecosystem
Chapter: 23
| MCQs |
1. How many main components does an ecosystem have?
(a) Two.
(b) Three.
(c) Four.
(d) Five.
Ans: (a) Two.
2. The process by which microorganisms decompose bodies and release substances is called—
(a) Production.
(b) Decomposition.
(c) Photosynthesis.
(d) Nutrient synthesis.
Ans: (b) Decomposition.
3. What is the main source of energy in an ecosystem?
(a) Water.
(b) Oxygen.
(c) Solar energy.
(d) Nitrogen.
Ans: (c) Solar energy.
4. Which organism prepares food through photosynthesis?
(a) Decomposer.
(b) Consumer.
(c) Predator.
(d) Producer.
Ans: (d) Producer.
5. Which among the following forms part of the food chain as consumers?
(a) Sun and water.
(b) Herbivores and carnivores.
(c) Producers.
(d) Decomposers.
Ans: (b) Herbivores and carnivores.
6. What is the name of the microorganism involved in the nitrogen cycle?
(a) Amoeba.
(b) Euglena.
(c) Rhizobium.
(d) Clostridium.
Ans: (c) Rhizobium.
7. Which of the following is a variable component of the ecosystem?
(a) Mountains.
(b) Soil.
(c) Population.
(d) None of these.
Ans: (c) Population.
8. Which gas is used during photosynthesis?
(a) Oxygen.
(b) Nitrogen.
(c) Hydrogen.
(d) Carbon dioxide.
Ans: (d) Carbon dioxide.
9. The system formed among producers, consumers, and decomposers is called—
(a) Ecosystem.
(b) Energy path.
(c) Food web.
(d) Food chain.
Ans: (a) Ecosystem.
10. The region where all living beings and their interactions with non-living components occur is known as—
(a) Microorganism.
(b) Biosphere.
(c) Organic matter.
(d) None of these.
Ans: (b) Biosphere.
11. The carbon cycle is related to—
(a) Water cycle.
(b) Nitrogen cycle.
(c) Gaseous cycle.
(d) Metallic cycle.
Ans: (c) Gaseous cycle.
12. Plants obtain carbon for photosynthesis from—
(a) Atmosphere.
(b) Water.
(c) Dead matter.
(d) Animal bodies.
Ans: (a) Atmosphere.
13. Carbon is transferred from plants to animals through—
(a) Water.
(b) Decay.
(c) Consumption.
(d) Combustion.
Ans: (c) Consumption.
14. Carbon in dead plant or animal bodies is released through—
(a) Plants.
(b) Combustion.
(c) Decomposition.
(d) None of these.
Ans: (c) Decomposition.
15. The main compound formed as a result of photosynthesis is—
(a) Water vapour.
(b) Cellulose.
(c) Protein.
(d) Carbohydrate.
Ans: (d) Carbohydrate.
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