Q: (SSC/0)
question_subject:
Geography
question_exam:
SSC
stats:
0,39,15,39,3,3,9
keywords:
{'ozone layer': [6, 0, 0, 6], 'atmosphere': [1, 1, 4, 7], 'ultraviolet rays': [0, 0, 1, 0], 'oxygen': [3, 0, 1, 0], 'reactions': [1, 0, 0, 4], 'cosmic rays': [2, 0, 1, 0], 'layers': [5, 2, 1, 10], 'carbon dioxide': [2, 0, 5, 6], 'infrared rays': [3, 0, 1, 0]}
The correct answer is option 1: oxygen and ultraviolet rays. The ozone layer is formed as a result of reactions between oxygen molecules (O2) and ultraviolet (UV) rays from the Sun. When UV rays from the Sun strike an oxygen molecule, it breaks it apart into two oxygen atoms. These oxygen atoms can then react with other oxygen molecules to form ozone (O3). The ozone layer is a protective layer in the Earth`s atmosphere that absorbs most of the Sun`s harmful UV radiation. This absorption prevents the UV rays from reaching the Earth`s surface and causing harm to humans, animals, and plants. It is important to note that ozone is continuously formed and destroyed in the atmosphere, maintaining a balance known as the ozone-oxygen cycle.