FORESTRY
ECOLOGY AND ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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El Nino
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global warming
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wind storms
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ozone depletion
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Detailed explanation-1: -Global warming is caused by increased concentration of greenhouse gases (carbon dioxide is one of the greenhouse gas) in the atmosphere. Increased organic matter in lakes causes eutrophication. Ozone depletion is mainly related to the use of CFC-based products.
Detailed explanation-2: -Although China currently emits the highest levels of CO₂ annually, it has emitted far less than the United States over the past three centuries. Since 1750, the United States has produced more than 400 billion metric tons of cumulative carbon dioxide emissions.
Detailed explanation-3: -Carbon dioxide (CO2) is a greenhouse gas. This means that it causes an effect like the glass in a greenhouse, trapping heat and warming up the inside. This effect is important: without the CO2 that naturally exists in the atmosphere, Earth might be too cold to support human life.