Chapter 2: Planet Earth

Front

What type of energy drives life on Earth?

Back

Solar energy

Front

What is Earth's daily spin on its axis called?

Back

Rotation

Front

What term describes Earth's annual orbit around the sun?

Back

revolution

Front

What imaginary lines measure Earth's distance from the equator?

Back

Lines of latitude

Front

Which area receives consistent sunlight year-round? Options: Polar regions, Desert areas, Tropic regions, Temperate zones

Back

Tropic regions

Front

How long does one complete Earth rotation take?

Back

24 hours

Front

How many days does Earth take to orbit the sun?

Back

365.25 days

Front

What causes the variation in Earth's seasons?

Back

The tilt of the Earth's axis and its orbit around the Sun.

Front

What percent of Earth's water is saline (salt water)?

Back

97.5%

Front

What type of water is essential for human consumption? Options: Rainwater, Distilled water, Freshwater, Saltwater

Back

Freshwater