Question 1

Which energy source is harnessed by transforming organic waste into methane gas?

Accepted Answer

Biogas

Answer

Batteries

Answer

Fossil fuels

Answer

Geothermal

Question 2

Which energy source uses the heat from the Earth's interior to generate electricity?

Accepted Answer

Geothermal

Answer

Biomass

Answer

Hydrothermal

Answer

Solar cells

Question 3

What method converts sunlight directly into electrical energy?

Accepted Answer

Solar cells

Answer

Geothermal

Answer

Biogas

Answer

Fossil fuels

Question 4

Which energy source is derived from the combustion of organic materials such as wood and crop residues?

Accepted Answer

Biomass

Answer

Fossil fuels

Answer

Batteries

Answer

Hydrothermal

Question 5

Which energy source harnesses the power of moving water to generate electricity?

Accepted Answer

Hydrothermal

Answer

Biogas

Answer

Batteries

Answer

Fossil fuels

Question 6

What energy source is obtained from the decomposition of organic matter in landfills or agricultural waste?

Accepted Answer

Biogas

Answer

Geothermal

Answer

Solar cells

Answer

Fossil fuels

Question 7

Which energy source is primarily derived from the Earth's heat, often found in volcanic areas?

Accepted Answer

Geothermal

Answer

Biomass

Answer

Hydrothermal

Answer

Batteries

Question 8

Which of the following energy sources is harnessed by converting kinetic energy from wind into mechanical energy?

Accepted Answer

Wind energy

Answer

Hydropower

Answer

Biomass

Answer

Solar cells

Question 9

Which energy source is generated from the chemical reactions in batteries?

Accepted Answer

Batteries

Answer

Biomass

Answer

Biogas

Answer

Fossil fuels

Question 10

What energy source is derived from the gravitational potential energy of water stored at height?

Accepted Answer

Hydropower

Answer

Biogas

Answer

Solar cells

Answer

Geothermal

Question 11

A community wants to switch from kerosene lamps to solar lamps.Which statement BEST explains why solar cells are a more sustainable energy source?

Accepted Answer

Sunlight is renewable and converted directly into electricity.

Answer

Solar panels cool down the house.

Answer

Solar cells burn fuel to make electricity.

Answer

Solar cells work only at night.

Question 12

A farm plans to reduce waste by installing a biogas digester.Which explanation BEST shows how biogas provides usable energy?

Accepted Answer

Decomposing organic matter releases gas that can be burned for heat and electricity

Answer

Waste materials evaporate and turn directly into electricity.

Answer

Digesters remove bacteria so the waste becomes fuel.

Answer

Organic waste freezes and produces electrical charge

Question 13

A power plant uses geothermal energy. Inside the plant, hot water from beneath the Earth is piped upward and turns into steam that spins turbines. Which part of this setup DIRECTLY harnesses the Earth’s internal heat?

Accepted Answer

The underground hot water or steam source

Answer

The cooling tower

Answer

The electrical wires

Answer

The turbine blades

Question 14

A researcher compares fossil fuels and biomass as energy sources.Which conclusion BEST demonstrates a higher-level understanding of how energy is harnessed from both?

Accepted Answer

Both are burned to release stored chemical energy, but biomass is renewable.

Answer

Fossil fuels release energy only when frozen, while biomass does not

Answer

Biomass cannot produce heat, but fossil fuels can

Answer

Only fossil fuels can be used in power plants.

Question 15

A school is selecting a backup energy source for emergencies. They need something that stores energy and can be used anytime without sunlight or heat.Which energy source BEST fits this need?

Accepted Answer

<P>Batteries</P>

Answer

Biomass burning

Answer

Solar cells

Answer

Geothermal steam

Related quizzes

Related quizzes