1-Why are scientists worried about the ozone hole? increase in skin cancer incre
ID: 997330 • Letter: 1
Question
1-Why are scientists worried about the ozone hole?
increase in skin cancer
increase in plant growth
decrease in ocean temperature
all of the above
2-Which type of radiation is effective at damaging DNA?
UV-A
UV-B
UV-C
visible
3- What does one Dobson unit (DU) equal?
1 ppb
1 ppm
100 ppb
100 ppm
4-What type of radiation is absorbed by molecular oxygen in the stratosphere?
UV-A
UV-B
UV-C
visible
5-Which type of chemical bond requires the least amount of energy to break?
single
double
triple
quadruple
A.increase in skin cancer
B.increase in plant growth
C.decrease in ocean temperature
D.all of the above
Explanation / Answer
1)A
2)A
3)A, DU isequal toapproximateley 1.25ppb
4)B
5)A
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