Ozone Answers

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How are individual atoms of oxygen formed in the stratosphere?

Individual oxygen atoms are formed when oxygen molecules collide with each other.

Individual oxygen atoms are formed in the sun.

Individual oxygen atoms are formed during photosynthesis.

Individual oxygen atoms are formed when UV rays strike oxygen molecules.

The ozone layer helps to sustain terrestrial life by __________.

absorbing incoming UV radiation

keeping levels of ozone in the troposphere low

maintaining the Earth's temperature structure

all of the above

Which of the following is an ozone depleting substance (ODS)?

ultraviolet radiation

chlorofluorocarbon (CFC)

biogeochemical cycle

none of the above

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