Using scarce water sustainably

Why are we facing a problem with the scarcity of water?

• The Earth is dominated by land.

• Most of the water on earth is salty water.

• Most fresh water is infested with poisonous fish.

• Fresh water can only be found underground.

Where can we find fresh water? Select all correct options.

• Ocean

• River

• Ice sheets

• Swamps

• Underground

Choose a suitable title for the attached picture.

• The amount of fresh water on the earth is enough for the global population.

• Asia is the richest continent in rich water with respect to its population.

• The individual's daily consumption is relative to their age and height.

• Fresh water on earth is not evenly distributed.

What is a water footprint?

• the amount of water that fall on Earth

• the amount of water we use

• the amount of water that is on our footprint

• the amount of water used to plant crops

Which type of water is used for drinking?

• Blue

• Green

• Grey

• Black

Select all that applies to grey water.

• It is polluted.

• It is water that came in contact with human waste.

• It can be used for bathing and watering plants.

• It can be used for drinking.

• It is water that falls as precipitation.

What does sustainability mean?

• Using lots of resources.

• Maintaining the world we live in for future generations.

• Cutting down trees.

• Meeting the food needs of animals

Choose all that apply to green water.

• It falls as precipitation.

• It comes from the earth's underground.

• It is not evenly distributed across the world.

• Plants store green water.

• It is used as drinking water.

Why is land suitable for grazing and agriculture becoming scarce? Choose all applicable answers.

• Much of the land has been overgrazed.

• It is not being used which makes it lose its agricultural qualities.

• Increasing temperatures are turning it into a desert.

• The soil loses its strength when it is used to grow plants.

Hydroponics does not need __________________.

• water

• soil

• nutrients

• light