MCQ Class 10 Science Our Environment with Answers

CBSE Class 10 Science Chapter 15 Our Environment Multiple Choice Questions with Answers. MCQ Class 10 Science Our Environment with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Science Our Environment MCQs with Answers to know their preparation level.

MCQ Class 10 Science Our Environment with Answers - Set - 4

Question 1: 

Which one of the following is an artificial ecosystem?
(a) Lake
(b) Forest
(c) Pond
(d) Crop field

Correct Answer – (D)

Question 2 : 

If a grasshopper is eaten by a frog, then the energy transfer will be from [NCERT Exemplar Problems]
(a) producer to decomposer
(b) producer to primary consumer
(c) primary consumer to secondary consumer
(d) secondary consumer to primary consumer

Correct Answer – (C)

Question 3 : 

Which of these does not belong to biotic component?
(a) Parasites
(b) Fungi
(c) Bacteria
(d) Soil

Correct Answer – (D)

Question 4 : 

The transfer of energy in a food chain is always:
(a) Unidirectional
(b) Methane
(c) Bi-directional
(d) Random

Correct Answer – (A)

Question 5 : 

When is the world environment day celebrated?
(a) 16 June
(b) 5 December
(c) 5 June
(d) 5 July

Correct Answer – (C)

MCQ Class 10 Science Our Environment with Answers

Question 6 : 

Excessive exposure to ultraviolet radiation causes
(a) inflammation of liver
(b) cancer of skin
(c) damage to the lungs
(d) jaundice

Correct Answer – (B)

Question 7 : 

Which group of organisms are not constituents of a food chain? [NCERT Exemplar Problems]
(a) Grass, lion, rabbit
(b) Plankton, man, fish, grasshopper
(c) Wolf, grass, snake, tiger
(d) Frog, snake, eagle, grass, grasshopper

Correct Answer – (C)

Question 8 : 

Which of these organisms are the most important decomposers in an ecosystem?
(a) Algae and fungi
(b) Fungi and bacteria
(c) Algae and bacteria
(d) Bacteria and virus

Correct Answer – (B)

Question 9 : 

Which of these is a greenhouse gas?
(a) Hydrogen sulphide
(b) Methane
(c) Ozone
(d) Carbon monoxide

Correct Answer – (B)

Question 10 : 

What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
(а) The population of tiger increases
(b) The population of grass decreases
(c) Tiger will start eating grass
(d) The population of tiger decreases and the population of grass increases

Correct Answer – (D)

MCQ Class 10 Science Our Environment with Answers

MCQ Class 10 Science Sources of Energy with Answers

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