Test your knowledge on Food Chain with our MCQ on Food Chain designed for Competitive Exams 2024. Prepare yourself to ace the challenge!
Table of Contents
MCQ on Food Chain
1. What is the primary source of energy in most food chains?
A) Water
B) Soil
C) Sun
D) Air
Answer: C) Sun
2. Which organisms make up the first trophic level in a food chain?
A) Consumers
B) Decomposers
C) Producers
D) Predators
Answer: C) Producers
3. What is the role of primary consumers in a food chain?
A) They consume producers.
B) They decompose organic matter.
C) They produce energy.
D) They consume secondary consumers.
Answer: A) They consume producers.
List of Current Affairs Topics 2024
4. Which organisms occupy the second trophic level in a food chain?
A) Producers
B) Tertiary consumers
C) Primary consumers
D) Decomposers
Answer: C) Primary consumers
5. What is the main function of decomposers in an ecosystem?
A) To produce energy
B) To consume primary consumers
C) To break down dead organic matter
D) To produce oxygen
Answer: C) To break down dead organic matter
6. What is the difference between a food chain and a food web?
A) A food chain is linear, while a food web is interconnected.
B) A food chain includes only producers, while a food web includes only consumers.
C) A food chain represents energy flow, while a food web represents nutrient cycling.
D) A food chain involves only herbivores, while a food web involves only carnivores.
Answer: A) A food chain is linear, while a food web is interconnected.
7. Which type of food chain begins with dead organic matter?
A) Grazing food chain
B) Detritus food chain
C) Primary food chain
D) Secondary food chain
Answer: B) Detritus food chain
8. What is the initial energy source for organisms in a grazing food chain?
A) Wind
B) Rain
C) Soil
D) Sun
Answer: D) Sun
9. What do primary consumers primarily feed on in a grazing food chain?
A) Other consumers
B) Producers
C) Decomposers
D) Abiotic factors
Answer: B) Producers
10. What role do detritivores play in the detritus food chain?
A) They break down dead organic matter.
B) They consume primary consumers.
C) They produce energy.
D) They compete with decomposers.
Answer: A) They break down dead organic matter.
MCQs on Environmental Studies
11. Which of the following organisms is an example of a producer in a food chain?
A) Lion
B) Grass
C) Rabbit
D) Eagle
Answer: B) Grass
12. What trophic level do decomposers occupy in a food chain?
A) First
B) Second
C) Third
D) Fourth
Answer: B) Second
13. Which of the following terms refers to organisms that live on or in another organism and derive their nutrients from it, usually harming it in the process?
A) Producers
B) Consumers
C) Parasites
D) Detritivores
Answer: C) Parasites
14. In a food chain, what term is used to describe organisms that feed on dead plant and animal matter?
A) Producers
B) Consumers
C) Decomposers
D) Herbivores
Answer: C) Decomposers
15. Which of the following statements about food webs is true?
A) Food webs consist of only one linear chain of organisms.
B) Food webs illustrate the flow of energy in a straight line.
C) Food webs are less complex than food chains.
D) Food webs depict multiple interconnected food chains.
Answer: D) Food webs depict multiple interconnected food chains.
16. Which of the following organisms is a primary consumer in a grazing food chain?
A) Grasshopper
B) Lion
C) Hawk
D) Snake
Answer: A) Grasshopper
17. What is the primary role of autotrophs in an ecosystem?
A) To break down organic matter
B) To produce their own food
C) To consume other organisms
D) To regulate the climate
Answer: B) To produce their own food
18. Which type of food chain depends on dead organic matter as its initial energy source?
A) Grazing food chain
B) Detritus food chain
C) Predator-prey food chain
D) Parasitic food chain
Answer: B) Detritus food chain
19. What is the ultimate source of energy for all living organisms on Earth?
A) Water
B) Soil
C) Sun
D) Air
Answer: C) Sun
20. Which organisms are responsible for recycling nutrients back into the environment in a food chain?
A) Producers
B) Consumers
C) Decomposers
D) Predators
Answer: C) Decomposers