Respuesta :

neelimasalagala8888

Answer: Fossil fuels – coal, oil and gas

Explanation: Fossil fuels – coal, oil and gas – are by far the largest contributor to global climate change, accounting for over 75 per cent of global greenhouse gas emissions and nearly 90 per cent of all carbon dioxide emissions. As greenhouse gas emissions blanket the Earth, they trap the sun's heat.

sarmila68

Answer:

major cause of global warming is

1.human activities like as burning fossils fuel and farming .

2.increased concentration of greenhouse gases in atmosphere.

3.uses of coolant like as CFCs .

4. cutting down Forests .

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