Question

essay on world without ozone layer​

Answer 1

Answer:

Without the ozone layer, UV radiation would not be filtered as it reached the surface of the earth. If this happened, cancer would break out and all of the living civilizations, and all species on earth would be in jeopardy.

Nearly two-thirds of Earth's ozone is gone—not just over the poles, but everywhere.  predictions of the state of the ozone layer in 2064 without (above left)  What kind of world was avoided by phasing out ozone-depleting substances? British Antarctic Survey and GSFC Atmospheric Composition Team.

Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere (the ozone layer), ... Scientists estimate that without action, these CFC-11 emissions will delay the recovery of the planet's ozone hole by a decade.

Answer 2

This natural sunscreen, known as Earth's ozone layer, absorbs and blocks the majority of the sun's UV radiation. Without this barrier in place, all of the radiation would reach Earth, damaging the DNA of plants and animals, like us humans. Skin cancer rates would soar, but we might not even live long enough to experience that cause of death [source: Carlowicz].

Within days of the ozone layer's disappearance, many plants would die. The intensity of the sun's radiation would make photosynthesis — a process by which plants convert light energy into chemical energy to fuel their growth — an impossibility for all but the largest and slowest-growing florae. And even these holdouts, primarily massive trees, would eventually die, too. Without plants, the food chain would collapse. Herbivores would starve. Omnivores and carnivores could feed off their bodies for a time, but their food supply would dwindle and cause widespread extinction [source: Vermaas].

So where is the ozone layer, exactly, and how does it work? A layer of ozone gas acts as a shield encircling Earth, and exists between 9.3 (15 kilometers) to 18.6 miles (30 kilometers) above its surface. As one might suspect, the ozone layer is filled with ozone, also known as 03 or trioxygen. Ozone is created when oxygen molecules (02) are split by the sun into a duo of free-ranging oxygen atoms. When one of these free atoms bonds with an 02 molecule, an 03 molecule -- ozone -- is created.

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