International Relations and the Environment — Important Questions
ICSE · Class 12 · Environmental Science
69 important questions from International Relations and the Environment for ICSE Class 12 Environmental Science, with answers.
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Important Questions from International Relations and the Environment
Which pair of facts about rainforests is correct?
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They cover about 6% of Earth's land surface, They hold over 50% of global biodiversity
Rainforests are small in area but extremely rich in species, covering about 6% of land and holding over 50% of global biodiversity.
Which statement about tropical rainforests and the planet is correct?
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Rainforests are called the lungs of the planet because they take in carbon dioxide and release oxygen
Rainforests absorb carbon dioxide and release oxygen through photosynthesis, which is why they are described that way.
Which UV type is the least harmful and reaches Earth's surface?
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UV-A
UV-A is the least harmful UV radiation and reaches Earth's surface.
Which pair of substances is used in the photolysis step of the Chapman cycle?
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O2, UV radiation
The creation step begins when UV radiation splits molecular oxygen, O2, into oxygen atoms.
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