Biomes & Ecosystems

What percentage of Earth's surface is covered by forests?

• 30%

• 50%

• 70%

• 25%

Which biome is characterized by having a lot of trees and plays a crucial role in climate control?

• Grassland

• Desert

• Forest

• Tundra

Tags

NGSS.MS-LS2-3

Which cycle involves the movement of water between the Earth's surface and the air?

• Oxygen cycle

• Water cycle

• Nitrogen cycle

• Carbon cycle

Tags

NGSS.MS-ESS2-4

What is the primary function of the nitrogen cycle in ecosystems?

• To produce oxygen

• To regulate temperature

• To decompose waste

• To convert nitrogen into usable forms for plants

Tags

NGSS.MS-LS2-3

How do human activities affect ecosystems?

• By improving air quality

• By causing pollution and deforestation

• By creating new species

• By increasing biodiversity

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5