Quiz

Which of the following is NOT a renewable source of energy?

• A. Solar energy
• B. Wind energy
• C. Nuclear energy
• D. Biomass energy

What is the process of conversion of water vapor into liquid water called?

• A. Evaporation
• B. Condensation
• C. Precipitation
• D. Sublimation

Which component of the environment is adversely affected by the greenhouse effect?

• A. Ozone layer
• B. Biosphere
• C. Lithosphere
• D. Atmosphere

What is the unit used to measure electric current?

• A. Ohm (Ω)
• B. Volt (V)
• C. Ampere (A)
• D. Watt (W)

Which of the following is an example of a chemical change?

• A. Melting ice
• B. Boiling water
• C. Burning wood
• D. Dissolving sugar in water

What is the smallest unit of an element that retains the properties of that element?

• A. Molecule
• B. Atom
• C. Ion
• D. Electron

Which of the following is a conductor of electricity?

• A. Plastic
• B. Copper
• C. Wood
• D. Glass

What is the main function of the respiratory system?

• A. Pump blood throughout the body
• B. Break down food into nutrients
• C. Exchange gases with the environment
• D. Filter waste from the blood

What is the Earth's primary source of energy?

• A. Fossil fuels
• B. Nuclear fusion
• C. Geothermal energy
• D. Solar radiation

Which organ in the human body produces insulin?

• A. Liver
• B. Pancreas
• C. Kidneys
• D. Stomach