Question

state any four human activities which contribute to global warming

Answer 1

It is due to increasing number of vehicles which causes air pollution..
It is due to the use of CFCs gas which can be found in AC and refrigerators..
It is due to deforestation which causes less rainfall...
It is due to the practice of greenhouse which traps the heat from the sun and the land becomes heat due to this greenhouse...
These are the human activities which contribute global warming...hope it helps...

Answer 2

Excess use of vehicles why humans which causes vehicular pollution using releasing toxic gases like carbon dioxide and carbon monoxide

The   industries where humans work after using water discharged into the nearby water bodies that increases the temperature of water . Moreover they cause air pollution releasing oxides of Nitrogen and carbon monoxide contributing global warming

The population pressure due to which we cut down trees for establishment of society enhance we balance the rate of carbon dioxide and oxygen content in air which also helps in increase of greenhouse gases

The use of aerosol spray refrigerators air conditioners incense sticks etc releases chlorofluorocarbons that depletes Ozone  and also a Greenhouse gas that causes global warming