Consuming Resources

Question 1

What is Food Security?

Answer 1

The ability to obtain sufficient food on a day-to-day basis. People are considered to be ‘food secure’ when they do not live in fear of hunger

Question 2

What is Food Insecurity?

Answer 2

When it is difficult to obtain sufficient food. This can range from hunger to full scale famine

Question 3

What is Malthus’ Population Theory?

Answer 3

• Population grows exponentially whilst food production grows arithmetically
• Meaning population will eventually outstrip food supply
• Therefore population would decrease through starvation
• Other natural checks on population growth include war and disease

Question 4

What is Boserup’s Population Theory?

Answer 4

• Population growth controls farming methods
• People wouldn’t give in to disease or famine, but invent solutions to the problem
• ‘agricultural intensification’

Question 5

What does RENEWABLE mean?

Answer 5

These resources will never run out and can be used over and over again e.g. wind and solar power. They are infinite resources

Question 6

What does SUSTAINABLE mean?

Answer 6

There resources are meeting the needs of people now, without compromising the needs of future generations e.g. biofuels

Question 7

What does NON-RENEWABLE mean?

Answer 7

These resources are being used up and cannot be replaces e.g. coal, gas and oil. They are finite resources

Question 8

Give an example of Renewable Energy

Answer 8

WIND POWER (USA) - There are now more than 13,000 large wind turbines in California and hundreds of homes + farms across the state also use smaller ones. In 2007, wind energy provided 2.3% of California’s total energy requirements

Question 9

Give a example of Sustainable Energy

Answer 9

BIOGAS (INDIA) - Biogas plants convert organic matter (animal dung, wood chips). This ferments, releasing methane. This is then collected in a tank and can be burnt to provide electricity or gas for cooking.

Question 10

Give an example of Non-Renewable Energy

Answer 10

NATURAL GAS (EUROPE) - Used for electricity production, heating + cooking. In UK, gas is collected from under the North Sea, but much has now been used up.

Question 11

What are most plastic bottles made from?

Answer 11

Crude oil

Question 12

How much crude oil is required to make a 1 litre plastic bottle?

Answer 12

162 grams

Question 13

How many plastic bottles are used each year in USA and how much oil is required to make them?

Answer 13

In the USA, 29 billion plastic bottles are used each year, requiring more than 17 million barrels of oil

Question 14

How many biogas plants are there in India?

Answer 14

There are over 2.5 million biogas plants across India, providing 57% of the country’s energy

Question 15

How much gas does the UK have to import?

Answer 15

In 2006, UK imported 50% of its gas supplies from Eastern Europe + Russia, expected to increase to 80% by 2020

Question 16

What products do hydrogen cars emit?

Answer 16

Just water

Question 17

What are the advantages of hydrogen cars?

Answer 17

Use most abundant element, hydrogen
Emit no greenhouse gases / pollutants
Reduce dependency on fossil fuels

Question 18

What are the disadvantages of hydrogen cars?

Answer 18

Hydrogen flammable and hard to store

Technology is expensive

Question 19

Name an example of a hydrogen car

Answer 19

The Ford Edge

The first alternative fuel car to have the same travelling distance as petrol or diesel fuelled cars (225 miles)

Question 20

How many malnourished people are there on the planet?

Answer 20

850 million

Question 21

By how much did world average food prices change between 2001 and 2011?

Answer 21

They rose by 70%

Question 22

Name a company trying to reduce its impact on the environment

Answer 22

Interface Carpets

Question 23

How is Interface Carpets trying to reduce its impact on the environment?

Answer 23

Obtain all energy from renewable sources by 2020
Install renewable energy systems
Sell carbon neutral products
Motivate workers with waste reduction programmes