Overview of Earth's Geography

The video explores Earth's unique features, including its vast oceans and diverse life forms. It discusses how volcanic and tectonic activities shape the planet's surface, creating mountains and valleys. Erosion by water, ice, and wind continuously reshapes the landscape. The video also covers the concept of biomes, highlighting how climate and soil influence the distribution of life. Aquatic ecosystems are examined, emphasizing the impact of human activities on these environments.

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

• 70%

• 80%

• 60%

• 50%

Which natural force is responsible for creating uplift mountains?

• Volcanic eruptions

• Tectonic plate movements

• River systems

• Erosion by wind

What is a biome?

• A geological fault line

• A type of mountain range

• A distinct life zone on Earth

• A type of ocean current

Which biome is found at the poles of the planet?

• Savanna

• Desert

• Polar ice sheet

• Rainforest

What is a major threat to Earth's aquatic ecosystems?

• Natural erosion

• Tectonic shifts

• Human population growth

• Volcanic eruptions