Plants play an important role in environment.They give us oxygen and carbon-dioxide.So if we cut down tree then there will be less oxygen and more carbon dioxide in the atmosphere. If there will be pollution then the atmosphere will become more heated and polluted.It will also give side effect on ozone layer.So we should use Compressed Natural Gas for less pollution from vehicle. Water should be used carefully.It should be mis used by people.They should not keep the tap while bushing or not closing the tap when bucket of water is full .We should not throw dirty matter or mke animals bath in river .Humidity is the amount of water present in the atmosphere.Air is a mixture of gase .Animals and human beings need oxygen to live.Soil is a part of earth’s crust in which humus is present .If then will notn be proper soil with minerals and water then we will not have good food grains to feed on
