Jss2 Third term Basic science past questions and answers

Question: What is the process of the Earth’s crust moving, leading to earthquakes?

a) Erosion

b) Subduction

c) Plate tectonics

d) Sedimentation

 

Answer: c) Plate tectonics

 

Question: Which gas is essential for photosynthesis to occur in plants?

a) Carbon dioxide

b) Oxygen

c) Nitrogen

d) Hydrogen

 

Answer: a) Carbon dioxide

 

Question: What is the function of the lens in the human eye?

a) Filtering light

b) Regulating the amount of light entering the eye

c) Focusing light onto the retina

d) Producing tears

 

Answer: c) Focusing light onto the retina

 

Question: In the electromagnetic spectrum, which type of wave has the highest frequency?

a) Radio waves

b) Microwaves

c) X-rays

d) Gamma rays

 

Answer: d) Gamma rays

 

Question: What is the process of water returning to the Earth’s surface as rain, snow, or sleet?

a) Evaporation

b) Condensation

c) Precipitation

d) Transpiration

 

Answer: c) Precipitation

 

Question: Which gas is most abundant in the Earth’s atmosphere?

a) Oxygen

b) Nitrogen

c) Carbon dioxide

d) Argon

 

Answer: b) Nitrogen

 

Question: What is the function of the nervous system?

a) Producing hormones

b) Controlling body movements and transmitting signals

c) Digesting food

d) Maintaining body temperature

 

Answer: b) Controlling body movements and transmitting signals

 

Question: What is the chemical formula for methane?

a) CH3OH

b) CO2

c) CH4

d) C6H12O6

 

Answer: c) CH4

 

Question: Which force opposes the motion of an object through a fluid (liquid or gas)?

a) Gravity

b) Friction

c) Tension

d) Magnetism

 

Answer: b) Friction

 

Question: What is the main component of the Earth’s core?

a) Iron

b) Nickel

c) Gold

d) Silver

 

Answer: a) Iron

 

Question: What is the SI unit for measuring electric voltage?

a) Ampere

b) Watt

c) Volt

d) Ohm

 

Answer: c) Volt

 

Question: Which gas is produced during the process of respiration in living organisms?

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen

 

Answer: b) Carbon dioxide

 

Question: What is the role of chloroplasts in plant cells?

a) Storage of nutrients

b) Energy production

c) Photosynthesis

d) Water absorption

 

Answer: c) Photosynthesis

 

Question: Which planet is known as the “Gas Giant” in our solar system?

a) Venus

b) Jupiter

c) Mars

d) Saturn

 

Answer: b) Jupiter

 

Question: What is the process of a gas turning into a liquid?

a) Sublimation

b) Evaporation

c) Condensation

d) Melting

 

Answer: c) Condensation

 

Question: Which organ is responsible for producing insulin in the human body?

a) Liver

b) Pancreas

c) Kidney

d) Stomach

 

Answer: b) Pancreas

 

Question: What is the chemical symbol for potassium?

a) K

b) P

c) Ki

d) Ka

 

Answer: a) K

 

Question: Which type of rock is formed by the alteration of existing rocks through heat and pressure?

a) Sedimentary

b) Metamorphic

c) Igneous

d) Sedimentary

 

Answer: b) Metamorphic

 

Question: What is the SI unit for measuring time?

a) Second

b) Minute

c) Hour

d) Day

 

Answer: a) Second

 

Question: In the human body, which system is responsible for producing antibodies?

a) Respiratory

system

b) Circulatory system

c) Immune system

d) Skeletal system

 

Answer: c) Immune system