Envirnment and Climate Change

Environment and Ecology

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Indian Economy - Understanding the basics of Indian economic system

Consider the following statements regarding the Greenhouse Effect:

1.The greenhouse effect is a natural process that warms the Earth’s surface.

2.Life on the earth has been possible because of this natural greenhouse effect.

3.Greenhouse gases trap the outgoing infrared radiation from the earth’s surface.

Which of the statements given above is/are correct?

1 and 2 only

1 and 3 only

2 and 3 only

1, 2 and 3

option d

The greenhouse effect occurs when greenhouse gases in a planet's atmosphere insulate the planet from losing heat to space, raising its surface temperature.
Greenhouse gases' are crucial to keeping our planet at a suitable temperature for life.
Without the natural greenhouse effect, the heat emitted by the Earth would simply pass outwards from the Earth's surface into space and the Earth would have an average temperature of about -20°C.
Some of the radiation emitted by the Earth's surface is absorbed by greenhouse gases and clouds.
Without this absorption, Earth's surface would have an average temperature of −18 °C to -20°C