CBSE Class 9 Biology Revision Worksheet Set K

Read and download free pdf of CBSE Class 9 Biology Revision Worksheet Set K. Students and teachers of Class 9 Biology can get free printable Worksheets for Class 9 Biology in PDF format prepared as per the latest syllabus and examination pattern in your schools. Standard 9 students should practice questions and answers given here for Biology in Grade 9 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 9 Biology Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems provided here with solutions on daily basis to get more score in school exams and tests

Biology Worksheet for Class 9

Class 9 Biology students should refer to the following printable worksheet in Pdf in standard 9. This test paper with questions and answers for Grade 9 Biology will be very useful for exams and help you to score good marks

Class 9 Biology Worksheet Pdf

 

CBSE Class 9 Biology Worksheet - Revision (8)

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ONE MARK QUESTIONS:

1. Gram seeds are soaked in water and upon becoming tender; they split into 2 equal halves. State the name of these 2 halves.

2. What is meant by biosphere?

3. Mention one method by which living organisms influence the formation of soil.

4. Name the man made component which is responsible for depletion of ozone layer.

5. What is green house effect?

6. Why water is necessary for living organisms?

7. Social harmony and good economic conditions are necessary for good health. Give reason.

8. Mention causes of global warming?

9. Write the name of the group of plants which produces seeds but not fruits.

10. List any two human activities that you think would lead to air pollution.

11. How would call the symbiotic relationship between fungi and certain blue green algae?

12. List two biotic components of biosphere.

13. State the phylum to which anteon (feather star) and asterias (starfish) belong.

14. What is the criterion for classification of organism belonging to kingdom Monera or Protista?

15. Who is known as “Father of Taxonomy.”

16. Name the organism found to be very sensitive to levels of contaminants like SO2 in air.

17. Give reason-Balanced diet is necessary for maintaining a healthy body.

18. Name two factors that make soil?

19. What is the name of the organism found in the noudle of leguminous plants?

20. The animals of which groups of kingdom animalia are cold blooded animals.

TWO MARK QUESTIONS:

1. Distinguish between Bryophyta and Thallophyta stating two examples each.

2. List four diseases for which vaccines have been developed.

3. Apart from sexual contact AIDS virus spreads by which other two means.

4. Fungi cannot be considered as non green plants. Why?

5. State two reasons Why Whales are not grouped with fishes?

6. List four ways of spreading communicable diseases.

7. Differentiate between biodegradable and non-biodegradable pollutants.

8. a) Define cryptogams?

b) Name the division of plant kingdom having amphibian plants.

9. List two ways in which soil erosion is caused?

10. What causes Acid rain? Mention any damage caused by it on living organism.

11. a) Name the phylum to which the following are included spider, cockroach, prawn, Housefly.

b) What is biodiversity?

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