Final Assesment Revision

Question 1

Population Numbers:

Answer 1

Population number change over time, influenced by births, deaths and migration into and out of the area. The world’s population has increased over time and it is estimated that the world’s population will continue to increase into the future.

Question 2

Factors affecting birth rates:

Answer 2

• Larger families mean more workers.
• Medical Care.
• Access to contraception
• Tradition for large families

Question 3

Factors affecting death rate:

Answer 3

• Famine
• Diets
• Medical care
• War

Question 4

Population-

Answer 4

The amount of people living in a place.

Question 5

Birth Rate-

Answer 5

The number of births per 1,000 people.

Question 6

Death Rate-

Answer 6

The number of deaths per 1,000 people.

Question 7

Ageing Population-

Answer 7

A population with a large amount of old people (over 65).

Question 8

Youthful Population-

Answer 8

A population with a large amount of young people (under 16)

Question 9

Problems with Ageing Populations-

Answer 9

• Pressure on Heath Care
• A need for care homes
• More pensions needed
• Fewer economically active (less people of working age).
• Less tax as there are less people working therefore less people to pay tax.

Question 10

Problems with youthful populations-

Answer 10

• More schools needed.
• In the future, these children will be parents, leading to more strain on health services.
• Fewer people working.
• Less tax as there are less people working and therefore less people paying tax.

Question 11

Fossil Fuels-

Answer 11

A fossil fuel is a natural fuel formed by the remains of living plants or animals.

Question 12

What are the three forms of Energy?

Answer 12

Coal
Oil
Gas

Question 13

Non-Renewable example;

Answer 13

Fossil fuels- They will run out one day.

Question 14

Energy-

Answer 14

Electricity s a very convenient form of energy that can be generated using different energy resources. All resources have advantages and disadvantages.

Question 15

Advantages of Fossil Fuels;

Answer 15

Fairly easy to find.
Generate a large amount of energy.
Reliable source of energy.
Well developed source of power as they have been used for years.

Question 16

Renewable Energy;

Answer 16

Renewable energy is energy that is infinite and will never run out.

Question 17

Renewable resources;

Answer 17

Wind power
Solar power
Hydroelectric power
Geothermal power

Question 18

Advantages of Renewable energy;

Answer 18

Supply is infinite
They use the natural environment to generate electricity eg: wind, water, heat
Sustainable forms of energy are generated.
Do not give off harmful gases.

Question 19

Disadvantages of Renewable energy;

Answer 19

Wind turbines can look unsightly.
Cost a lot
Building dams for hydroelectric power can flood the land around it.
Renewable energy sources cannot be used in every environment. Wind turbines are better on higher land where there is more wind.

Question 20

The Brandt line-

Answer 20

The Brandt line divides the world into the Rich north and Poor South.

Question 21

The Rich north-

Answer 21

The rich north consume a high amount of fossil fuels in factories, cars and heating homes etc. The Rich North now use more renewable resources as fossil fuels are starting to run out. They are able to afford the design and manufacturing of wind turbines or solar panels.

Question 22

The Poor south-

Answer 22

Many countries in the Poor South use natural materials to produce energy such as wood but now many countries are becoming more developed (rich) and are using fossil fuels more often. This means that fossil fuels are being used at a quicker rate.

Question 23

Using too many fossil fuels-

Answer 23

When we burn fossil fuels we add to the blanket of carbon and other harmful gases in the atmosphere. This traps more of the Suns energy leading to higher temperatures. This is called Global Warming.

Question 24

The greenhouse effect

Answer 24

Solar energy from the sun passes through the atmosphere.
Some of the energy is reflected back out into space.
Earth’s surface is heated by the sun and radiates heat back into space.
Greenhouse gases in the atmosphere trap some of the heat.

Question 25

Acting sustainably:

Answer 25

This means we take care over the amount of resources we use so we don’t run out or damage the environment for future generations.

Question 26

Individual Actions-

Answer 26

Waking, cycling, taking the bus rather that driving.
Recycling waste products so they can be used again.
Reuse plastic bags and plastic bottles to reduce oil use.
Switching off electrical appliances after use.
Buying locally produced items to reduce air miles.

Question 27

National/Global actions;

Answer 27

Making non-petrol using cars to reduce the amount of oil used.
Insulating homes to reduce the use of central heating.
Building more wind farms to produce renewable energy.
Solar panels at lower costs.