1GB3

Question 1

How does diversifying the energy mix increase energy security?

Answer 1

• less reliant on other sources
• less affected by shortages
• if renewables then lasts longer than fossil fuels

Question 2

What is the relationship between biosphere and the soil?

Answer 2

• source of organisms such as. earthworms improve soil quality and structure
• leaf fall = litter which decays to make humus = nutrients for plant growth

Question 3

How are rainforests protected?

Answer 3

• CITES = help endangered species

- REDD = protect forest by paying funds

Question 4

What are conventional oil and gas reserves?

Answer 4

• ecologically sensitive areas being exploited for reserve such as the Arctic

Question 5

What are unconventional oil and gas reserves?

Answer 5

• exploited with more expensive methods and specialist technology such as hydraulic fracking
• tar sands and shale gas

Question 6

What is ecological footprint?

Answer 6

• how much land is needed to support an individual’s lifestyle

Question 7

What are goods and services provided by biomes?

Answer 7

Goods:
- food, wood, water, medicines, rubber
Services:
- climate regulation, atmospheric gas regulation, habitats, tourism, nutrient cycling, humus for fertile soil, forests, marshes and mangroves that act as a natural flood defence