What percentage of the original parent isotope is daughter if 4 half lifes have elapsed?

  1. 50%
  2. 75%
  3. 87.5%
  4. 93.75%
  5. 100%


93.75%

Environmental & Atmospheric Sciences

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Air pollution impacts urban climates in all of the following ways EXCEPT:

A) they increase the relative humidity. B) they increase the frequency of fog. C) they decrease the amount of solar energy received at the surface. D) they provide condensation nuclei and create a cloud seeding effect.

Environmental & Atmospheric Sciences

Although bottled water is convenient, it is 240-10,000 times more expensive than tap water. Other than cost, what are the drawbacks to using bottled water?

What will be an ideal response?

Environmental & Atmospheric Sciences

How have coastal river deltas, mangrove forests, and coastal wetlands been affected by human activity?

What will be an ideal response?

Environmental & Atmospheric Sciences

Precipitation in desert areas is ____

a. caused by cyclonic activity b. associated with the high sun season c. irregular, unreliable, and sometimes extreme d. caused by orographic lifting of cT air masses e. quite predictable, but minimal

Environmental & Atmospheric Sciences