Hydrological cycle

Question 1

How much of the Earth’s surface is covered by water?

Answer 1

70%

Question 2

How much of mammalian bodies are water?

Answer 2

60-70%

Question 3

How much of the water is freshwater?

Answer 3

2.5%

Question 4

How much of the freshwater is groundwater?

Answer 4

30%

Question 5

How long does water stay in the atmosphere?

Answer 5

For around 7 days

Question 6

How long does water stay in the ocean for?

Answer 6

100s to 1000s years

Question 7

What is advection?

Answer 7

Horizontal movement of water vapour

Question 8

What is convection?

Answer 8

Vertical transport of water vapour

Question 9

What are atmospheric rivers?

Answer 9

Narrow areas with condensed water vapour which moves quicker than other water

Question 10

What is the pineapple express?

Answer 10

The pineapple express moves moisture which builds up near Hawaii and when it reaches the west coast, a lot of water is dumped.

Question 11

What is transpiration?

Answer 11

Water passes from liquid to vapour through plant metabolism.

Question 12

What is the biological carbon pump?

Answer 12

Carbon and nitrogen are taken from the surface of the ocean deeper down, leading to absorption of carbon dioxide.

Question 13

What is water stress?

Answer 13

When the demand for water exceeds the available amount.