What is the unit of electric current?
a) Volt
b) Watt
c) Ampere
d) Ohm
Answer : c) Ampere
Which gas is most abundant in Earth’s atmosphere?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Argon
Answer : b) Nitrogen
What is the process of converting water vapor into liquid water called?
a) Evaporation
b) Condensation
c) Sublimation
d) Precipitation
Answer : b) Condensation
What is the hardest naturally occurring substance on Earth?
a) Iron
b) Diamond
c) Quartz
d) Gold
Answer : b) Diamond
What is the main function of the liver in the human body?
a) Producing bile
b) Pumping blood
c) Filtering air
d) Storing glucose
Answer : b) Pumping blood
Which of the following is a renewable source of energy?
a) Coal
b) Natural
gas
c) Solar power
d) Petroleum
Answer : c) Solar power
What is the chemical formula for water?
a) H2O2
b) CO2
c) H2SO4
d) H2O
Answer : d) H2O
What is the speed of light in a vacuum?
a) 300,000 km/s
b) 500,000 km/s
c) 1,000,000 km/s
d) 200,000 km/s
Answer : a) 300,000 km/s
Which organ in the human body is responsible for producing urine?
a) Liver
b) Kidneys
c) Heart
d) Lungs
Answer : b) Kidneys
What is the process of plants releasing water vapor called?
a) Condensation
b) Transpiration
c) Precipitation
d) Evaporation
Answer : b) Transpiration
What is the chemical symbol for oxygen?
a) O2
b) O3
c) O
d) H2O
Answer : c) O
Which of the following is a greenhouse gas?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Argon
Answer : c) Carbon dioxide
What is the largest organ in the human body?
a) Brain
b) Heart
c) Liver
d) Skin
Answer : d) Skin
What is the SI unit of pressure?
a) Pascal
b) Joule
c) Newton
d) Watt
Answer : a) Pascal
What is the process of plants using sunlight to make food called?
a) Photosynthesis
b) Respiration
c) Digestion
d) Fermentation
Answer : a) Photosynthesis