ESS
Grade-9
Easy
Question
Match the following.
| 1. Carbon dioxide |
a. Hydrocarbon |
| 2. Methane |
b. Major component of climate change |
| 3. Carbon monoxide |
c. It’s a poisonous gas |
| 4. Carbon fluorocarbon |
d. Causes ozone depletion |
- 1 – b, 2 – a, 3 – c, 4 – d
- 1 – a, 2 – b, 3 – c, 4 – d
- 1 – d, 2 – c, 3 – b, 4 – a
- 1 – c, 2 – a, 3 – d, 4 - b
Hint:
- Carbon dioxide is the primary greenhouse gas contributing to recent climate change.
The correct answer is: 1 – b, 2 – a, 3 – c, 4 – d
- Carbon dioxide is the primary greenhouse gas contributing to recent climate change.
- Methane (CH4) is a hydrocarbon that is a primary component of natural gas.
- Carbon monoxide is poisonous because it binds to haemoglobin forms carboxyhemoglobin which leads to the breathing problem
- CFCs are among the "greenhouse gases" in the atmosphere that contribute to future global warming
- So .1 – b, 2 – a, 3 – c, 4 – d
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