ESS
Grade-9
Easy
Question
We know that the greenhouse effect is natural, then why today's climate change has become a serious issue?
- Because a small increase in greenhouse gas concentration can have a great impact on rise in temperatures.
- Because humans have modified a natural method and exaggerated changes that might normally happen over millions of years.
- Because once greenhouse gases release into the atmosphere, they remain effective for many years, making it hard to reverse the process.
Because unexpected changes to the climate system may have accidental outcomes that may cause challenges for societies, such as severe weather, spread of diseases, a decrease in marine life, or changes in ocean circulation patterns.
Because unexpected changes to the climate system may have accidental outcomes that may cause challenges for societies, such as severe weather, spread of diseases, a decrease in marine life, or changes in ocean circulation patterns.
Hint:
The greenhouse effect is the way in which heat is trapped close to Earth's surface by “greenhouse gases.
The correct answer is: Because humans have modified a natural method and exaggerated changes that might normally happen over millions of years.
- A small increase in greenhouse gas concentration can have a large effect of increased warming. Humans have altered a natural process and exaggerated changes that might normally occur over millions of years.
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