1.1. This question is about carbon dioxide and other greenhouse gases.

What name is given to the total amount of carbon dioxide emitted during the life cycle of a product?

Circle one answer.

1.2. There are many schemes that aim to reduce carbon footprints.

One scheme involves off setting carbon by planting trees.

How would this activity offset carbon?

1.3. Suggest two other ways of reducing carbon footprints.

1.4. The pie chart in Figure 1 shows the total amount of greenhouse gas emissions for different human activities. 

Figure 1 

Which statements are true about the emissions from these activities?

Tick (✓) two boxes.

1.5. Suggest one reason why it is difficult for some countries to reduce their carbon footprint.