Science GK Quiz

1. In all electrical appliances, the switches are put in the___.

1. Neutral wire
2. Earth wire
3. Live wire
4. All of these

2. What happens to the current in short circuit?

1. Vary continuously
2. Increases heavily
3. Reduces substantially
4. Does not change

3. Which is the life supporting zone of the earth?

1. Lithosphere
2. Hydrosphere
3. Atmosphere
4. Biosphere

4. The structural and functional unit of the environment is the___.

1. Green gases
2. Ecosystem
3. Atmosphere
4. Nervous system

5. Which of these is NOT biodegradable?

1. Plastic
2. Aluminium cans
3. DDT
4. All of the above

6. Which of these is the least polluting fuel?

1. CNG
2. Diesel
3. Petrol
4. Kerosene

7. The small pores present on a leaf’s surface are called _____.

1. Chlorophyll
2. Outer layer
3. Stomata
4. Guard cells

8. What are the essential components of food called?

1. Minerals
2. Nutrients
3. Fibers
4. None of the above

9. The food component present in sugar is ___.

1. Protein
2. Mineral
3. Fat
4. Carbohydrate

10. Which component of food helps our body to fight against infections?

1. Vitamin C
2. Vitamin D
3. Fat
4. Starch