Carbon

Question 1

Energy mix

Answer 1

Combination of fossil fuels, nuclear power, renewable energy that is used to meet industrial energy needs.

Question 2

Carbon sequestration

Answer 2

Practise of removing CO2 from the atmosphere and storing it

Question 3

Access and consumption to energy depends on:

Answer 3

-physical availability, location
-supply and demand, supplies decreasing
-technology, allow oil to be extracted deeper and more technically difficult
-public perception, Amish tribes dont like tech, Chernobyl means people have doubts
-level of economic development
-environmental priority, states aim to be renewable and self-sufficient

Question 4

OPEC

Answer 4

12 oil producing countries, aim to stabilise oil prices

Question 5

Ocean acidification

Answer 5

Reduction in the pH of the ocean due to the uptake of CO2 in the atmosphere

Question 6

Mitigation

Answer 6

reducing risk of loss from the occurrence of any undesirable event

Question 7

Tar sands

Answer 7

Opencast mines are used to extract tar sands before it is crushed and misted with water. High-pressure steam can be injected in to separate the bitumen from the sands.
Tar sands are only economically worthwhile when oil prices rise above US$40 a barrel. This is because tar sand production costs US$8-18 a barrel more than conventional oil production.
The process is energy intensive, requiring 1 barrel of conventional oil to produce 3 barrels of tar sand oil.
It is also water intensive, requiring 2-5 barrels of water for each barrel of oil.