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IMSO 2007 Taiwan Selection — Science First Round Question 30

IMSO Science · IMSO 2007 Taiwan Selection — Science First Round

Question 30

Which statement below describes the green-house effect?
  1. Buildings made of glass reflect sunlight to our environment (atmosphere) and then increase the environment temperature.
  2. We live in green-house like environment, the sunlight radiated to the earth surface, but the heat energy will be reflected back to the earth by CO₂ layer in atmosphere.
  3. Glass is a bad material to absorb heat energy, thus it increase the atmosphere temperature.
  4. Both of CO₂ and ozone layers in atmosphere have broken in the atmosphere, so that no barrier for sunlight. Therefore, the air temperature is increasing.