Energy from the Sun

The video explains the crucial role of the sun in sustaining life on Earth. It highlights how the sun provides energy, drives the water cycle, and supports photosynthesis, which is essential for plant growth and food chains. The sun also contributes to human health by providing vitamin D. Without the sun, Earth would be uninhabitable.

Why is the sun considered essential for life on Earth?

• It is the main source of energy for Earth.

• It controls the Earth's rotation.

• It creates the Earth's magnetic field.

• It provides light for navigation.

What role does the sun play in the water cycle?

• It cools the water vapor in the atmosphere.

• It directly creates precipitation.

• It causes water to freeze and form ice.

• It heats water, causing it to evaporate.

How do humans utilize the energy from moving water?

• By capturing it with dams and water wheels.

• By using solar panels.

• By storing it in batteries.

• By converting it into wind energy.

What process do plants use to make their own food?

• Digestion

• Respiration

• Fermentation

• Photosynthesis

What vitamin does sunlight naturally provide to humans?

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D