Fresh Water and Its Importance

The video discusses the distribution of water on Earth, highlighting that 71% of the Earth's surface is covered by oceans, which contain 97% of all water. However, ocean water is too salty for human use. Fresh water, essential for life, makes up only 3% of Earth's water, with just 1% easily accessible. It is found in rivers, lakes, and groundwater. A significant portion of fresh water is locked in ice and glaciers, which are melting due to climate change, affecting water availability. The video emphasizes the need for responsible use and conservation of fresh water.

Why is water considered a precious resource?

• It is abundant and easily accessible.

• It is essential for all living things to survive.

• It is not necessary for human life.

• It is only found in oceans.

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

• 80%

• 71%

• 60%

• 50%

Why is ocean water not suitable for drinking?

• It is too fresh.

• It is too hot.

• It is too cold.

• It is too salty.

Where can fresh water be found?

• In the atmosphere.

• In rivers, lakes, and groundwater.

• In oceans and seas.

• In deserts.

What percentage of all water on Earth is fresh water?

• 1%

• 3%

• 10%

• 20%

What is groundwater?

• Water in the atmosphere.

• Water in rivers.

• Water stored underground in rocks and soil.

• Water found in oceans.

What percentage of fresh water is locked in ice and glaciers?

• 69%

• 60%

• 80%

• 50%

How does climate change affect ice and glaciers?

• It causes them to melt.

• It has no effect.

• It makes them colder.

• It causes them to expand.

What is the main message regarding the use of fresh water?

• Only use it for farming.

• Ignore its availability.

• Conserve and use it responsibly.

• Use it as much as possible.

What is the primary source of water on Earth?

• Lakes

• Rivers

• Oceans

• Groundwater