Wetlands and Freshwater Ecosystems

This video from Mumu Math and Science explores freshwater biomes, which make up only 2.5% of Earth's water. It covers the major types: rivers and streams, lakes and ponds, and wetlands. Each biome is adapted to low salt content, unlike saltwater environments. Rivers and streams flow in one direction, influenced by landscape slope. Lakes and ponds are standing water bodies, varying in size and duration. Wetlands, including marshes and swamps, support diverse species. The video concludes with a recap of these biomes.

What percentage of Earth's water is freshwater?

• 1%

• 2.5%

• 5%

• 10%

Which of the following is NOT a major freshwater biome?

• Lakes

• Ponds

• Wetlands

• Oceans

What is the starting point of a river or stream called?

• Basin

• Mouth

• Delta

• Source

How does a steep slope affect the flow of water in rivers and streams?

• Stops it

• Reverses it

• Slows it down

• Speeds it up

What prevents the accumulation of organic materials in fast-moving rivers?

• Cold temperatures

• High salt content

• Currents and turbulence

• Lack of sunlight

How large can lakes and ponds be?

• Up to 100 square meters

• Up to 500 square meters

• Up to 1,000 square meters

• Up to 10,000 square meters

For how long can some ponds be filled with water each year?

• A few weeks or months

• Permanently

• A few years

• A few days

Which of the following is a type of wetland?

• Desert

• Savanna

• Tundra

• Marsh

What type of plants are commonly found in wetlands?

• Cattails

• Cacti

• Bamboo

• Pine trees

Which group of animals is commonly found in wetlands?

• Kangaroos

• Penguins

• Polar bears

• Amphibians