Science Question Bank
for Exam preparation

Q2. Halley's comet completes one revolution around the sun in:

1. 40 years
2. 46 years
3. 60 years
4. 76 years

Q3. Find out the salient features of environment:

1. It is the sum of biotic and abiotic elements.
2. It is based on the4 interactive and functional relationship between and biotic and abiotic
3. It always tens to maintain ecological balance.
4. All of the above

Q4. What is the work done in moving a unit positive charge from infinity to that point in electric field called?

1. Electric potential
2. Potential difference
3. Electric current
4. Electric circuits

Q5. Mushrooms are/can be:

1. A variety of fungus
2. Fleshy, fruiting bodies of the fungus
3. Grown in small sheds or plots
4. All the above

Q6. Mention the source of Liver, milk, egg yolk, fish liver oil?

1. Vitamin A
2. Vitamin B2
3. Vitamin D
4. Vitamin C

Q7. ------------- play a vital role of releasing essential materials from the dead matter and thus maintain a continuous cycle of energy flow and of material.

1. Saprophytes
2. Autotrophs
3. Hetrotrophs
4. None of the above/ More than the above

Q8. Fungi are plants that lack:

1. Oxygen
2. Carbon dioxide
3. Chlorophyll
4. None of these

Q9. The inventor of the atomic theory is:

1. Rutherford
2. Madam Curie
3. John Dalton
4. Albert Einstein

Q10. The mass number of an atom is:

1. Number of nucleons in the nucleus
2. Number of protons in the nucleus
3. Number of neutrons in the nucleus
4. None of these