SECTION 4
Questions 31-33
Choose the correct letter, A, B, or C.
31 Society cannot
A find more coal and oil.
B reduce waste C02.
C take C02 from power stations.
32 Turning carbon dioxide into a solid
A is slow but practical.
B can be made faster.
C cannot happen naturally.
33 Seawater
A has lots of carbonic acid.
B has closely connected types of life.
C is highly acidic.
Questions 34-40
Complete the table.
Write NO MORE THAN TWO WORDS OR A NUMBER for each answer.
Three Problems of Geosequestration
Risk of leaks | Cost | 34______ still not proven |
Gas would become 35______ | expensive,particularly the 36______ | Require the plant to burn 37______ of its coal |
↓ | ↓ | ↓ |
risk of widespread 38______ | Price of electricitycould 39______ | release of more Sulphur,ash, and 40______ |
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.