Read the extract and answer the following questions.
Extract:
Human civilisations have been around for a paltry 12,000 years — barely a few seconds on the geological clock. In that short amount of time, we’ve managed to create quite a ruckus, etching our dominance over Nature with our villages, towns, cities, megacities. The rapid increase of human populations has left us battling with other species for limited resources, and the unmitigated burning of fossil fuels has now created a blanket of carbon dioxide around the world, which is slowly but surely increasing the average global temperature.
(Journey to the end of the Earth)
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Question (i)
What is the term used to describe the phenomenon of increasing average global temperature due to the accumulation of greenhouse gases in the atmosphere?
- Global warming
- Climate change
- Ozone depletion
- Acid rain
Answer:
Answer as written by the student:
(a) Global warming
Step-by-step explanation: 🧐
- The term used to describe the phenomenon of increasing average global temperature due to the accumulation of greenhouse gases in the atmosphere is global warming.
- Greenhouse gases are gases that trap heat in the atmosphere, such as carbon dioxide, methane, nitrous oxide, and water vapor.
- These gases are naturally present in the atmosphere, but human activities such as burning fossil fuels, deforestation, agriculture, and industry have increased their concentration and enhanced their effect.
- Global warming is one of the main causes of climate change, which is the term used to describe the longterm changes in weather patterns and environmental conditions due to global warming and other factors.
Question (ii)
How long have human civilizations been around according to the extract?
- 12,000 years
- 120,000 years
- 1.2 million years
- 12 million years
Answer:
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