Water Resources and Their Characteristics

The video explains the two types of water on Earth: fresh water and salt water. It describes the water cycle, which circulates water between the ocean and land. Fresh water, which falls as precipitation, collects in streams, rivers, and lakes, and eventually flows into the ocean, carrying minerals that make the ocean salty. The video highlights that 97% of Earth's water is saltwater, which is not suitable for human use, while only 3% is freshwater. Most freshwater is locked in glaciers and polar ice caps, with a small percentage available as surface water and groundwater.

What are the two main types of water found on Earth?

• Tap water and bottled water

• Mineral water and distilled water

• Rainwater and groundwater

• Fresh water and salt water

What is the process called that circulates water between the ocean and the land?

• Carbon cycle

• Water cycle

• Nitrogen cycle

• Oxygen cycle

What happens to water when it evaporates from oceans, lakes, and streams?

• It condenses into clouds

• It disappears

• It turns into ice

• It becomes salt

What is fresh water that falls as precipitation known as?

• Groundwater

• Rainwater

• Salt water

• Surface water

How do minerals and salts become part of the ocean?

• Through volcanic eruptions

• By dissolving in rainwater

• Through underwater currents

• By rivers flowing into the ocean

Why is the ocean salty?

• Because of fish

• Due to pollution

• Because of dissolved salts from rivers

• Due to evaporation

What percentage of the world's water is found in the oceans?

• 50%

• 75%

• 99%

• 97%

What is the term for fresh water found on the Earth's surface?

• Saltwater

• Surface water

• Rainwater

• Groundwater

Where is most of the world's fresh surface water stored?

• In the atmosphere

• In glaciers and polar ice caps

• In lakes

• In rivers

What percentage of the total fresh water on Earth is made up by groundwater?

• 1%

• 77%

• 22%

• 50%