Question

4. What is global warming?​

Answer 1

Answer:

Global warming is the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.

Explanation:

Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit, as the atmosphere or surface changed, or when the Sun’s energy varied. But in the past century, another force has started to influence Earth’s climate: humanity.

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Answer 2

1. Answer=Rise the average temperature of the earth for earth climate.

Explanation:

It have many bad effects on our environment.:

• sea water get at melting point.
• earth degrading.

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