Zone example sentences

Indiscriminate exploitation of resources has led to global ecological crises such as, global warming, ozone layer depletion, environmental pollution and land degradation.Therefore, it is important to maintain the ozone shield.Thus, CFCs are transporting agents for continuously generating chlorine radicals into the stratosphere and damaging the ozone layer.It is difficult to imagine the consequences for life on Earth if the ozone layer dwindles further, but many people think that it would be better not to take chances.Troposphere is a turbulent, dusty zone containing air, much water vapour and clouds.Natural vegetation and wildlife exist only in the narrow zone of contact between the lithosphere, hydrosphere and atmosphere that we call biosphere.Ozone layer is one of the important constituents of stratosphere.The chlorine radicals are continuously regenerated and cause the breakdown of ozone.This life-supporting zone of the Earth where the atmosphere, the hydrosphere and the lithosphere interact and make life possible, is known as the biosphere.Recently the EPZs have been converted to Special Economic Zones (SEZs) which are more advanced form of export processing zones.The stratosphere, on the other hand, contains dinitrogen, dioxygen, ozone and little water vapour.Ozone and nitric oxide irritate the nose and throat and their high concentration causes headache, chest pain, dryness of the throat, cough and difficulty in breathing.Export Processing Zones are industrial estates, which form enclaves from the Domestic Tariff Areas (DTA).The cells proximal (just next, away from the tip) to the meristematic zone represent the phase of elongation.Once they reached the ozone layer, they would react with the ozone molecules.