Punjab 12th Class Biology Chapter 27 Man and his Environment Mcqs Test Online

Total Question
15 Questions
Total Marks
30 Marks
Total Time
15 Minuts
Test Help For ::

12th Biology Class Test
Entry Test Biology MCQs
Biology Admission Test
Competitive Exams
All Punjab Boards Annual Exams



Test Name



Ch.27 # Man and his Environment

Subject



Biology (10th Class)

Test Type



MCQs


Punjab 12th Class Biology Chapter 27 Man and his Environment Mcqs Test Online

Biology Chapter 27 Man and his Environment Mcqs Test Online 12th Class Punjab Boards

 

Question 1 of 15

Biology

1. A population carrying capacity:
1.
2.
3.
4.

Question 1 of 15

Question 2 of 15

2. Which of these levels of ecological study involves both abiotic and biotic components?
1.
2.
3.
4.

Question 2 of 15

Question 3 of 15

3. Which of this ecosystem has the lowest net primary production per square meter?
1.
2.
3.
4.

Question 3 of 15

Question 4 of 15

4. Why are ecosystems dependent on a continual supply of solar energy?
1.
2.
3.
4.

Question 4 of 15

Question 5 of 15

5. Which is one group of organisms that is able to fix atmospheric nitrogen into forms usable by living organisms?
1.
2.
3.
4.

Question 5 of 15

Question 6 of 15

6. Producers of an ecosystem are:

1.
2.
3.
4.

Question 6 of 15

Question 7 of 15

7. Klater content of glaciers and polar ice caps
1.
2.
3.
4.

Question 7 of 15

Question 8 of 15

8. Ozone layer is found in:
1.
2.
3.
4.

Question 8 of 15

Question 9 of 15

9. Of the total water of the world, oceans contain about:
1.
2.
3.
4.

Question 9 of 15

Question 10 of 15

10. Which of the following is the graphical representation of ecological data of an ecosystem?
1.
2.
3.
4.

Question 10 of 15

Question 11 of 15

11. How do nitrogen fixing bacteria contribute to the nitrogen cycle?
1.
2.
3.
4.

Question 11 of 15

Question 12 of 15

12. Nutrient cycle always involve:
1.
2.
3.
4.

Question 12 of 15

Question 13 of 15

13. Which of the following is also called greenhouse effect?
1.
2.
3.
4.

Question 13 of 15

Question 14 of 15

14. The main cause of the recent increase in the amount of CO₂ in the Earth’s atmosphere:
1.
2.
3.
4.

Question 14 of 15

Question 15 of 15

15. Total water resources of the world is
1.
2.
3.
4.

Question 15 of 15


 

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