PASSAGE 11

The word "pits'' P1 mean

• hardens

• Depresses

• Removes the mark of

• Sets in competition

The purpose of the first paragraph of the passage is to

• Argue for the reduction of the greenhouse gases in the atmosphere

• Present two opposing position on the subject of earth's rising temperature

• Depend on economic grounds the reduction of greenhouse gases

• Introduce to most spokesmen for and against ecológical reforms

The word "that" in paragraph 2

• nitrous oxide

• Methane

• warming effect

From the information in the two para of the passage, you can infer that a planet

• With a larger amount of cacbondioxit in its atmosphere, other factor

• planet Whose atmosphere was made up entirely of oxygen would be warmer than a

• Whose atmosphere was made up entirely of nitrogen would be warmer than a planet

• With little infrared radiation escaping from it surface is likely to be......

the word "skeptics" in p3 closest to meaning

• scientists.

• doubters

• opponents

• police

according to the recent report from the UN intergovernmental plan on clima change, emission of carbon dioxide by the year 2025 will be.

• one quarter greater than estimated.

• 50% greater than estimated.

• 50% smaller than estimated

• one quarter smaller than estimated.