Earth and Life Science Quiz

Emma is studying the atmosphere and learns about the ozone layer. She wonders why it is important to Earth.

• It regulates the weather on Earth.

• It produces enough amount of rain.

• It protects Earth from meteors and asteroids impact.

• It filters harmful UV radiation that reaches the Earth.

Plants, animals, and microbes survive and thrive on Earth million years ago because Earth provides essential factors needed for life to exist. Which of the following factors is essential to support life on the planet?

• Liquid water

• Nutrients

• Temperature

• All of the above

How does temperature affect the ability of Earth to support life?

• temperature intensifies gravity

• temperature produces nutrients

• temperature protects Earth from radiation

• temperature affects biological and chemical processes

Which of the following is not a function of Earth's atmosphere?

• It provides energy.

• It provides significant insulation.

• It protects from harmful radiation.

• It gives protection against small to medium size meteorites.

What is a greenhouse gas?

• It is a gas that traps heat.

• It is a gas that shields Earth from radiation.

• It is a gas that releases heat from Earth.

• It is a gas that provides protection from space.

What element composes the ozone layer?

• carbon

• helium

• hydrogen

• oxygen

What will happen to Earth if there are no greenhouse gases?

• Earth's temperature will increase.

• Earth's temperature will decrease.

• Earth's temperature will become stable.

• Earth's temperature will not be affected.

What is the most important factor that determines Earth's temperature?

• size of the orbit

• distance from the sun

• gas in the atmosphere

• amount of water on the planet

How do volcanoes support life on Earth?

• It helps in nutrient cycling.

• It produces gas that cools the Earth.

• It provides heat through magma release.

• It changes the topography of the Earth's crust.

Which of the following best describes the surface of the planet Earth?

• a thick layer of hydrogen gas

• cloudy and hot with lots of volcano

• cold, rocky, and covered with red dust

• mostly water surface with some areas of land