WB TET · Environmental Studies
Composition, pollution and the greenhouse effect.
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Q1 · Air and Atmosphere · EASY
Which gas is present in the largest amount in the Earth's atmosphere?
Q2 · Air and Atmosphere · MEDIUM
A student burns dry leaves in an open area near a school. The smoke causes breathing problems for nearby children. Which air pollutant is primarily responsible for this breathing difficulty?
Q3 · Air and Atmosphere · MEDIUM
The greenhouse effect keeps the Earth warm enough to support life. Which of the following gases contributes MOST to the natural greenhouse effect?
Q4 · Air and Atmosphere · HARD
A factory releases both sulphur dioxide and nitrogen oxides into the air. These gases mix with water vapour in clouds and fall as rain. In a nearby village, farmers notice that their crops are damaged and the marble statue at the local school is becoming rough and eroded. What is the most likely cause of this damage?
Q5 · Air and Atmosphere · MEDIUM
The composition of clean air consists of approximately 78% nitrogen and 21% oxygen. Which property of air is demonstrated when we inflate a balloon?