Earth's Systems Review

What is made up of solid and molten rock, soil and sediments?

• geosphere
• atmosphere
• hydrosphere
• biosphere

What is the process by which water moves between the Earth and the atmosphere?

• carbon cycle
• nitrogen cycle
• water cycle
• bi cycle

The ______________ is all the water on the Earth and in the atmosphere.

• biosphere
• geosphere
• hydrosphere
• hypersphere

All of the water found on Earth and in the atmosphere is called the ___________

• biosphere
• hydrosphere
• geosphere
• atmosphere

Humans have no effect on the Earth.

• true
• false

What percent of the Earth's water is fresh water?

• 1%
• 3%
• 70%
• 100%

What gas makes up most of our atmosphere?

• hydrogen
• nitrogen
• oxygen
• helium

The biosphere contains all living things, even bacterium and plant spores.

• false
• true

The biosphere contains all living things, even bacterium and plant spores.

• false
• true

The outer core is made up mostly of solid iron.

• true
• false