Natural Resources Quiz

What gas makes up the largest portion of Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

Which gas is commonly used in photography and lighting?

• Nitrogen

• Argon

• Oxygen

• Carbon Monoxide

What percentage of Earth's water is found in oceans?

• 50%

• 71%

• 97%

• 2.7%

Which layer of soil contains the most organic matter?

• Bedrock

• Subsoil

• Topsoil

• Humus

Which layer lies directly beneath the topsoil?

• Humus

• Subsoil

• Bedrock

• Clay

What do the atmosphere, hydrosphere, and lithosphere together form?

• Ecosystem

• Biosphere

• Troposphere

• Geosphere

Which sphere includes rivers and lakes?

• Lithosphere

• Atmosphere

• Hydrosphere

• Biosphere

Which of the following is a method of water conservation?

• Over-irrigation

• Reuse and recycling

• Dumping waste in rivers

• Excessive groundwater extraction

The process of soil formation is called ______________

Which layer of soil contains the most organic matter?

• Bedrock

• Subsoil

• Clay layer

• Humus