Unit Test No. SubjectDurationMarksClassBatch4Bio1/2 hr20X
State
1. A non biodegradable pollutant. Cannot be recycled by easy
methods is [1]
(A) PVC (B) Polyesters (C) Thiokol (D) Polythene
2. Name the pollutant which destructs ozone layer.[1]
3. Use of D.D.T. should be minimized why?[1]
4. What is air pollution? List of the main sources of air
pollution?[2]
5. What is green house effect? Explain?[2]
6. Explain about radioactive pollution?[2]
7. What is acid rain? How it will form and mention the harmful
effects from acid rain?[2]
8. Name the pigment responsible for red colour in red
algae?[1]
9. Identify the feature exclusive to monocots[1]
a. Tap root system
b. Reticulate venation
c. Fibrous root system
d. Flowers with 4 or5 petals
10. List the five kingdoms and explain about angiosperms?[3]
11. Explain about gymnosperms?[2]
12. Explain the step of reproduction in bryophyta?[2]
