Mixtures and water resources

Question 1

Nature has special methods of cleaning polluted water. In nature water is purified in natural environments called?

Answer 1

Wetlands

Question 2

An area is a wetland if it has the following?

Answer 2

1. Waterlogged soil
2. Water-loving plants
3. High water table

Question 3

What is it called when soil is full of water?

Answer 3

Waterlogged

Question 4

What is a water table?

Answer 4

The level in the ground where all the soil below this level is waterlogged (Full of water)

Question 5

What does it mean when an area has a high water table?

Answer 5

Water is close to the surface

Question 6

When is a wetland formed?

Answer 6

When the water table is just below the surface and water cannot filter down

Question 7

Examples of a wetland

Answer 7

Marches
floodplains
lakes
springs
river banks

Question 8

What is the importance of a wetland?

Answer 8

1. Wetlands are like gain sponges - store water in drought times
2. Wetlands slow downs flood water
3. Wetlands natural filtering systems for purifying water
4. Wetlands provide habitat to many different plants and animals

Question 9

Wetlands are important because of their…….?

Answer 9

Biodiversity

Question 10

Wetlands should be protected for?

Answer 10

1. Natural water-purification systems
2. They act like sponges to store water in wet season and supply water in the dry seasons
3. The slow down flood water to prevent damages to property and environment

Question 11

What can pollute water?

Answer 11

1. Insoluble substances
2. Soluble substances
3. Disease-causing germs

Question 12

What does wetlands act as?

Answer 12

Natural water purifiers because the can absorb soluble and insoluble impurities from water and regulate waterflow