The qualities of the greenhouse effect should be generated by human activity, and it absorbed and infrared radiation should be re-emitted.
What is a greenhouse gas?
It is the gas that contained the property of absorbing infrared radiation that should be emitted from Earth's surface and after this, it should be reradiating it back to Earth's surface. Also, Carbon dioxide, methane, and water vapour should be classified as the greenhouse gases.
Therefore, option b and option d are correct.
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