Page 149 - Viva ICSE Science 5 : E-book

9. The longer the rod or the lever, the harder it is to move the load.

10. Cloth and leather are biodegradable.

C. Answer the following in one word.

1. Diseases that spread easily from one person to another ______________

2. Waste materials that cannot be decomposed ______________

3. The process by which plants prepare their own food ______________

4. An example of decomposer ______________

5. Any loud and unpleasant sound is called ______________

6. An example of pleasant sound ______________

7. Moving air is called ______________

8. Type of eclipse in which the earth comes in between
the sun and the moon ______________

9. An example of second class lever ______________

10. Causative agent of malaria and dengue ______________

D. Match the following.

Column A Column B

1. Biodegradable (a) elephant

2. Non-biodegradable (b) drying of water bodies

3. Herbivore (c) knife

4. Scavenger (d) sound of loud music

5. Drought (e) egg shells, wood and paper

6. Unpleasant sound (f) potential energy

7. Pleasant sound (g) kinetic energy

8. Energy at rest (h) detergents and fertilisers

9. Energy due to motion (i) laughter of small children

10. Wedge (j) jackal

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