UV Light and the Ozone

Which is not an example of an ecological consequence of reduced stratospheric ozone?

• loss of biodiversity from reduced photosynthesis in plants

• collapse of marine food webs

• reduced crop yield

• reduced terrestrial biome productivity

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

NGSS.HS-LS4-5

Which statement regarding the decreased level of stratospheric ozone is correct?

• Increased photosynthetic activity has been measured in the phytoplankton around Antarctica

• The largest decrease in the level of stratospheric ozone over the Arctic region occurs between January and April

• Although the Montreal Protocol led to a reduction in the use of CFCs, it will have little effect on stratospheric ozone levels in the long term

• There is no correlation between the incidence of cataracts and skin cancers and the lower level so stratospheric ozone

• The global crop yields of wheat, rice, and corn have increased since the reduction in CFC use

Location of the large whole in the ozone.

• Antarctica

• Artic

• Iceland

• Africa

Why must Ultra-Violet observing be done in space?

• The ozone blocks most of the UV rays in the surface.

• It’s hard to know exactly where the ozone hole will be to find UV images

• It’s hard to use UV telescopes and radio telescopes together on the surface.

• It’s hard to use UV X-Ray telescopes and radio telescopes together on the surface

What is the correct equation for the breakdown of ozone?

• O3 + UV ---> O3 + energy

• O3 + UV ---> O2 + O

• O2 + O + UV ---> O3

• Ozone cannot be broken down

Tags

NGSS.HS-PS4-3

Which are effects of UV radiation on living organisms? select ALL that are true.

• It can cause cataracts.

• It can cause mutation in DNA.

• It can disrupt food chains by causing harm to photosynthetic organisms.

• It can cause organisms to overheat.

Tags

NGSS.HS-LS3-2

The ozone layer protects us from

• Increased atmospheric heat

• CFCs

• UV rays

• Decreased atmospheric heat

Tags

NGSS.HS-PS4-4

The thinning of the ozone layer is also known as the

• ozone hole

• ozone gap

• ozone space

• ozone void

What is the primary role of the ozone layer in relation to UV light?

• A) It absorbs harmful UV radiation from the sun.

• B) It reflects UV radiation back into space.

• C) It converts UV radiation into visible light.

• D) It enhances the intensity of UV radiation reaching Earth.

Tags

NGSS.HS-PS4-4

Which chemical reaction represents the breakdown of ozone by UV light?

Tags

NGSS.HS-PS1-4

NGSS.HS-PS4-3