Earth & Life Science 1st Quarter - Reviewer

The atmosphere of the Earth is composed of ___ oxygen and _____ nitrogen and other gases.

• 0% and 100%

• 78% and 21%

• 21% and 78%

• 50% and 50%

Planet Earth is considered as 'blue planet.' Which of the following best describes the surface of planet Earth?

• Earth has atmosphere.

• Earth has lots of volcano.

• Earth is covered with red dust.

• Earth has mostly water on the surface.

What part of geosphere is a thin layer of solid rock that makes up the outermost part of the Earth?

• core

• mantle

• crust

• biosphere

Which of the following best describes planet Earth?

• It has gases.

• It has rocky core.

• It supports life.

• It supports other planet.

Ozone plays an important function in every single organism on Earth. To what sphere does ozone layer belong?

• atmosphere

• geosphere

• biosphere

• hydrosphere

What are the building blocks of rocks and it is mostly found in the geosphere?

• minerals

• ore

• soil

• elements

In its powdered form, the mineral hematite is reddish. Which mineral property is best described?

• color

• Streak

• luster

• hardness

What is the reason why Earth is different from other planets in the solar system?

• Earth is mostly covered in water.

• Earth has comfortable distance from the sun.

• Earth has carbon dioxide on its atmosphere.

• It has approximately same size as that of Venus.

What type of rocks are formed from sediments over long period of time?

• Igneous Rocks

• Metamorphic Rocks

• Sedimentary Rocks

• Minerals

What kind of process by which heat energy is transmitted through collisions between neighboring atoms or molecules?

• conduction

• convection

• insolation

• radiation