Review-Earth Science

What Earth subsystem encompasses all the land?

• A. Atmosphere

• B. Biosphere

• C. Hydrosphere

• D. Lithosphere

What is the inner core made up of?

• A. Liquid metal

• B. Solid metal

• C. Rocks

• D. Magma

In the hydrosphere, what makes up most of the water?

• A. Freshwater

• B. Glaciers

• C. Rocks

• D. Magma

This phenomenon happens when Earth's umbra obscures the moon's entire visible surface.

• A. Lunar Eclipse

• B. Partial Solar Eclipse

• C. Total Lunar Eclipse

• D. Annular Solar Eclipse

Choose the best label for this picture.

What is the usual color of the moon during total lunar eclipse?

• A. Red

• B. Blue

• C. Yellow

• D. Black

What happens to the speed of meteoroids as they enter the Earth's atmosphere?

• A. it dissipates.

• B. It moves faster.

• C. It slows down.

• D. it breaks down.

What can be described as an exploding ball of gas?

• A. Planet

• B. Galaxy

• C. Star

• D. Universe

Choose the best label for this picture.

How many km across is a light-year?

• A. 10 km

• B. 10 trillion km

• C. 186,000 km

• D. 12,700 km