Availability of Freshwater

The video explains the distribution of Earth's water, highlighting that 97% is saline and only 3% is fresh. Of this, a small fraction is readily available for use, as most is trapped in ice caps or underground. The water cycle plays a crucial role in renewing fresh water, involving processes like evaporation and precipitation. Despite its importance, fresh water is limited, and increasing human activities are leading to scarcity. The video emphasizes the need for awareness and conservation to address the growing water crisis.

What percentage of Earth's water is fresh and readily available for human use?

• 2%

• Less than 1%

• 3%

• 1%

Which process in the water cycle involves water vapor cooling and forming clouds?

• Evaporation

• Condensation

• Precipitation

• Sublimation

How does the water cycle contribute to the purification of water?

• By evaporating and leaving impurities behind

• By filtering impurities through soil

• By mixing with saline water

• By freezing impurities in ice

According to the United Nations, how much water does a person need daily for basic needs?

• 20 liters

• 100 liters

• 50 liters

• 10 liters

What year was observed as the International Year of Fresh Water?

• 2010

• 2003

• 2015

• 2000

What is a major consequence of the increasing human population on water resources?

• Overconsumption and depletion

• Decreased water demand

• Increased water purification

• Stabilized water levels

What activities are contributing to the depletion of fresh water resources?

• Recreational activities

• Industrial and agricultural activities

• Fishing activities

• Tourism activities