The Atmosphere and Climate Change (Grade 11 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What percentage of Earth's atmosphere is nitrogen?
What percentage of Earth's atmosphere is nitrogen?
78%
What would Earth's temperature be without any greenhouse gases?
What would Earth's temperature be without any greenhouse gases?
-18°C
How much more potent is methane compared to CO₂ at trapping heat over 100 years?
How much more potent is methane compared to CO₂ at trapping heat over 100 years?
25 times
What percentage of global greenhouse gas emissions does deforestation contribute?
What percentage of global greenhouse gas emissions does deforestation contribute?
20%
What percentage of dangerous UV radiation does stratospheric ozone absorb?
What percentage of dangerous UV radiation does stratospheric ozone absorb?
97-99%
How many 'Rs' are in the strategy for reducing carbon footprint?
How many 'Rs' are in the strategy for reducing carbon footprint?
9
What percentage of land is becoming desert due to desertification?
What percentage of land is becoming desert due to desertification?
33%
What percentage of atmospheric methane comes from human activities?
What percentage of atmospheric methane comes from human activities?
Over 60%
When was the Montreal Protocol signed to reduce ozone-destroying substances?
When was the Montreal Protocol signed to reduce ozone-destroying substances?
1987
What percentage of global greenhouse gas emissions does carbon dioxide contribute?
What percentage of global greenhouse gas emissions does carbon dioxide contribute?
53%