Front

What is biomass energy?

Back

Biomass energy is energy produced from organic materials, such as wood, manure, or charcoal, which can be burned directly for heat or converted into biofuels.

Front

Where does most of the energy we use on Earth originate?

Back

Most of the energy we use on Earth can be traced back to the sun.

Front

What type of power plants are primarily responsible for acid deposition?

Back

Coal power plants are primarily responsible for acid deposition, including acid rain.

Front

In which regions are deposits of natural gas most numerous?

Back

Deposits of natural gas are most numerous in the USA and Russia.

Front

What is passive solar heat?

Back

Passive solar heat refers to the use of building design and materials to naturally collect and store solar energy for heating without mechanical systems.

Front

What is the main advantage of using solar energy?

Back

The main advantage of using solar energy is that it is renewable and reduces greenhouse gas emissions.

Front

What are photovoltaic cells?

Back

Photovoltaic cells are devices that convert sunlight directly into electricity.

Front

What is geothermal energy?

Back

Geothermal energy is heat energy generated and stored in the Earth, which can be used for heating and electricity generation.

Front

What is the difference between active and passive solar energy systems?

Back

Active solar energy systems use mechanical devices to collect and convert solar energy, while passive systems rely on building design and materials.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, including coal, oil, and natural gas.