Multiple Choice
Stratospheric ozone is important to ecosystems because it ________________
A) provides the air we breathe
B) ensures lakes and oceans do not lose water
C) keeps the temperature of Earth stable
D) absorbs and scatters UV light
E) keeps atmospheric gases balanced
Correct Answer:
Verified
Correct Answer:
Verified
Q4: The decrease in NO<sub>x</sub> emissions in the
Q5: In the U.S.,which of the following has
Q6: In industrialized nations,the two most deadly sources
Q7: Lead pollution is a problem because lead
Q8: _ is a naturally occurring radioactive gas
Q10: Which of the following is a secondary
Q11: In 1970,the source of most of the
Q12: Residence time is the _<br>A)length of time
Q13: The Coriolis effect _<br>A)keeps the wind circulating
Q14: Photochemical smog differs from industrial smog in