Energy sources

The video discusses the high energy consumption of plasma TVs and the growing global demand for energy. It highlights the problems associated with fossil fuels, such as their finite nature and carbon emissions, which contribute to global warming. The video introduces renewable energy sources like wind, solar, and hydropower as alternatives, but notes that these technologies currently cannot meet all energy needs. It concludes by questioning how future energy demands will be met.

Which device is highlighted as using the most electricity over a year?

• Plasma TV

• Microwave

• Washing Machine

• Refrigerator

What are the two main issues with relying on fossil fuels for energy?

• They are abundant and cheap

• They are renewable and clean

• They will run out and emit carbon dioxide

• They are expensive and hard to find

What role does carbon dioxide play when fossil fuels are burned?

• It is used in photosynthesis

• It contributes to global warming

• It is harmless to the environment

• It helps in cooling the planet

Which of the following is NOT a renewable energy source mentioned in the video?

• Solar

• Coal

• Hydropower

• Wind

What is a major challenge of using renewable energy sources like wind and solar?

• They are too expensive to produce

• They cannot yet meet all our energy needs

• They are harmful to the environment

• They are non-renewable