Geography Test

Question 1

In an average year how much rain falls on Earth

Answer 1

577,000km3

Question 2

How much of the annual rainfall falls on the land and evaporates

Answer 2

74,000km3 / 62%

Question 3

What is the remaining of the percent that runs off the land

Answer 3

35%

Question 4

How much of our water ends up in our rivers

Answer 4

12%

Question 5

Which river carries the most water

Answer 5

The Amazon River carries more water than any other river on Earth

Question 6

Which parts of Africa experience the lowest rainfall

Answer 6

Tropic of Cancer

Question 7

What is potable water

Answer 7

Potable water is water that is safe to drink and used for cooking and washing

Question 8

How many people do not have access to a reliable supply of fresh water

Answer 8

About 1 billion people

Question 9

What are the three main factors relating to water influence where people settle

Answer 9

1. Historical and Environmental Factors
2. Agriculture
3. Transport and Trade

Question 10

What is Historical and Environmental Factors

Answer 10

Towns and cities are developed along rivers, or near lakes and other fresh water sources

Question 11

What is agriculture

Answer 11

Communities relying on fresh water to grow crops and farm animals

Question 12

Trade and Transport

Answer 12

Rivers, lakes and oceans are an act of transport, allowing products and people to move easily from one place to another

Question 13

What are the two ways water can affect different people and places

Answer 13

Positively and Negatively

Question 14

What is a positive way it can affect different people and places

Answer 14

It is used to irrigate the crops and farm the livestock that we eat. Without it no life could exist

Question 15

What is a negative way it can affect different people and places

Answer 15

It can cause serious problems and damage in different places

Question 16

What is the most dangerous type of flood

Answer 16

Flash flood is the most dangerous flood because it is fast and it has a massive amount of rain water

Question 17

What is a king tide

Answer 17

A king tide is a tide that rises sea levels and creates high tides

Question 18

What is known as the amount of water needed to produce an item of food, or a piece of clothing

Answer 18

Virtual Water

Question 19

How much of Australia’s fresh water is used on farms (agriculture)

Answer 19

About 70 percent

Question 20

Can farmers use as much water as they want

Answer 20

Farmers are allowed to use a certain amount of water each year and are charged for the amount of water they use

Question 21

Which crop uses the most water

Answer 21

Rice

Question 22

Which crop uses the least water

Answer 22

Cotton

Question 23

Why does it take so much water to produce 1kg of rice

Answer 23

Because rice is grown in water and needs massive amounts to survive

Question 24

What relationship is shown between irrigation areas and rivers

Answer 24

All irrigation areas are near rivers for easy access

Question 25

What is Hydroelectric power

Answer 25

The power generated in the same way that easy watermills operated

Question 26

What is the main source of renewable energy

Answer 26

Hydroelectricity

Question 27

What are the advantages of building dams

Answer 27

- They store water to be released in drought periods - Stored water provides a constant flow to turn turbines to create electricity - Dams prevent flooding downstream - Stored behind dams are forms of recreational purposes

Question 28

What are the disadvantages of dams

Answer 28

- They often flood towns behind the dams and cause displacement on people - Dams prevent floods in the wet season causing in long term fertility being lost in downstream farms - Dams become full of silt washed down in the river

Question 29

When did we start relying on water

Answer 29

Since the beginning of human history

Question 30

What is our most precious resource

Answer 30

Water

Question 31

How much of the water consumed in Australia is used in our homes and gardens

Answer 31

Only 12%

Question 32

How much of the water consumed in Australia is used to irrigate farms

Answer 32

70% is used

Question 33

What is the worlds most important food crop

Answer 33

Rice as it is the main food source for over half of the worlds population

Question 34

Why is rice production heavily dependent on water

Answer 34

Water is the single most important component for sustainable rice production

Question 35

Where is the most of our rice grown

Answer 35

About 90% of the worlds rice is grown in Asia

Question 36

Which countries are the largest producers of rice

Answer 36

India and China

Question 37

Where is most of our fresh water on Earth

Answer 37

Most of our fresh water is in storage

Question 38

How long can fresh water be stored for

Answer 38

- Fresh water can be stored for days or weeks in a lake for thousands of years underground or in an ice cap

Question 39

How much of the Earths water is found in the oceans and is too salty to drink

Answer 39

97.5% of the Earth’s water is found in the oceans and is too salty to drink

Question 40

How much of the Maths water is safe for us to drink

Answer 40

- 2.5% is safe for us to drink and is in the polar ice caps and in flowing rivers of ice, known as glaciers