Earth Science Shape of the Earth Unit 2

The outermost layer is the ________.

• mantle

• crust

• inner core

• outer core

The core is made up mostly of _______________.

• oxygen

• magnesium

• iron

• carbon

The second abundant element that makes up the core is ______________.

• nickel

• iron

• oxygen

• calcium

The rock type that makes up Oceanic Crust is __________.

• granite

• conglomerate

• basalt

• gold

The rock type that makes up continental crust is ____________________.

• copper

• silver

• basalt

• granite

Two gases that make up 99% of Earth's atmosphere

• carbon dioxide & oxygen
• nitrogen & carbon dioxide
• nitrogen & oxygen
• nitrogen & water vapor

Layer of Earth's atmosphere where most of the water vapor and carbon dioxide is found

• thermosphere
• mesosphere
• stratosphere
• troposphere

Layer of Earth's atmosphere where weather occurs

• thermosphere
• mesosphere
• stratosphere
• troposphere

Earth's ozone layer is important because it absorbs

• visible light
• ultraviolet radiation
• x-rays
• radio waves

Layer of Earth's atmosphere that contains most of the ozone

• thermosphere
• mesosphere
• stratosphere
• troposphere