Science Question Bank
for Exam preparation

Q2. Which of the following is/are the correct definition of evolution?

1. Cumulative development in the characteristics of species over time.
2. It is a process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth.
3. Processes that give rise to biodiversity at every level of biological organisation, including the levels of species, individual organisms, and molecules.
4. All of the above

Q3. In which part of the body digestion of protein starts?

1. Mouth
2. Stomach
3. Duodenum
4. Intestine

Q4. 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

Q5. An electron possesses a negative charge of:

1. 16 * 10-19 C
2. 1.60 * 10-19 C
3. 26 * 10-19 C
4. 1.8 * 10-19 C

Q6. Substances through which electricity cannot flow are called:

1. Conductors
2. Insulators
3. Wires
4. Battery

Q7. Which of the following is the heaviest metal?

1. osmium
2. mercury
3. iron
4. nickel

Q8. Atom is electrically:

1. Positive
2. negative
3. bipositive
4. neutral

Q9. Name a gas which is used in refrigeration and in fire extinguisher?

1. Nitrogen
2. Hydrogen
3. Carbon Dioxide
4. Methane

Q10. Consider the following statement (s) related to the force of friction I. It is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. II. When surfaces in contact move relative to each other, the friction between the two surfaces converts kinetic energy into thermal energy (that is, it onverts work to heat). Which is/are correct statement (s)?

1. Only I
2. Only II
3. Both I & II
4. Neither I nor II