Ozone Answers

How are individual atoms of oxygen formed in the stratosphere?a.Individual oxygen atoms are formed when oxygen molecules collide with each other.b.Individual oxygen atoms are formed in the sun.c.Individual oxygen atoms are formed during photosynthesis.d.Individual oxygen atoms are formed when UV rays strike oxygen molecules.

Depletion to the ozone layer can cause changes to the biogeochemical cycles.

How does the ozone layer affect life on Earth?a.causes respiratory illnessb.increases photosynthesis in plantsc.causes damage to living tissued.filters out harmful ultraviolet radiation

Which of the following is an ozone depleting substance (ODS)?a.ultraviolet radiationb.chlorofluorocarbon (CFC)c.biogeochemical cycled.none of the above

The troposphere contains 90% of the ozone in the atmosphere.

How does the absorption of ultraviolet radiation by the ozone layer help sustain life?a.This process helps maintain the temperature of the Earth.b.It keeps a low level of harmful ultraviolet radiation from reaching living organisms.c.This process keeps ozone concentrations in the troposphere at lower levels.d.All of the above are true.

Ozone is formed when _______.a.two oxygen molecules combineb.an individual oxygen atom combines with an oxygen moleculec.ultraviolet radiation breaks apart four oxygen moleculesd.oxygen molecules are broken into separate atoms

Halons contain halogens, which are highly reactive with oxygen.

Where are chlorofluorocarbons found?a.coolantsb.the atmospherec.solventsd.all of the above

Over 95% of incoming UV-B radiation is absorbed in the stratosphere. Please select the best answer from the choices provided