1. Inheritance of skin color in humans is an example of

Options:

• A) Heredity
• B) Polygenic inheritance
• C) Multiple alleles
• D) Incomplete dominance

Correct Answer: B) Polygenic inheritance

2. What is called for the movement of surface litter and topsoil from one place to another?

Options:

• A) Soil submerge
• B) Soil degradation
• C) Soil erosion
• D) Soil pollution

Correct Answer: C) Soil erosion

3. The property of materials by which they can be molded into any shape is

Options:

• A) Conductivity
• B) Elasticity
• C) Plasticity
• D) Rigidity

Correct Answer: C) Plasticity

4. The isotope deuterium of hydrogen has _________

Options:

• A) No neutron and one proton
• B) One neutron and two protons
• C) One electron and two neutrons
• D) One proton and one neutron

Correct Answer: D) One proton and one neutron

5. The hottest part of the gas flame is known as

Options:

• A) Luminous zone
• B) Dark zone
• C) Blue zone
• D) Non-luminous zone

Correct Answer: D) Non-luminous zone

6. Which part of the body transports oxygen, food, hormones, and waste materials?

Options:

• A) Bone
• B) Heart
• C) Blood
• D) Urine

Correct Answer: C) Blood

7. Which of the following receptors in our body detect smell?

Options:

• A) Gustatory
• B) Olfactory
• C) Mechano receptors
• D) Somatosensory

Correct Answer: B) Olfactory

8. The isotope of the hydrogen atom which contains only one proton is called _________

Options:

• A) Protium
• B) Deuterium
• C) Tritium
• D) None of the given options

Correct Answer: A) Protium

9. What is the chemical symbol for Polonium?

Options:

• A) P
• B) Po
• C) Pl
• D) Pu

Correct Answer: B) Po

10. Which of the following is a characteristic of longitudinal wave?

Options:

• A) The displacement of the medium is parallel to the propagation of the wave.
• B) The displacement of the medium is perpendicular to the propagation of the wave.
• C) The displacement of the medium is independent of the propagation of the wave.
• D) None of the given options

Correct Answer: A) The displacement of the medium is parallel to the propagation of the wave.