How many half-lives would have occurred if radioactive decay began with 180,000 parent atoms of an isotope but had only 17,500 left?

  1. One
  2. Two
  3. Three
  4. Four


Three

Environmental & Atmospheric Sciences

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Which of the following did you NOT consider during the Chapter 3 Investigation (Seasonal Circulation Shifts)?

A) Air pressure B) Wind velocity C) Cloud cover D) How much vegetation a region had E) The effects of climate change and rising sea level

Environmental & Atmospheric Sciences

Where does groundwater discharge naturally?

A)only in the ocean B)only in springs C)only in streams D)only in aquifers E)wherever the groundwater table intersects the ground surface

Environmental & Atmospheric Sciences

New York City has experienced a local sea level rise of about 9 cm per decade since 1900.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

A key factor in digital images is spatial resolution, expressed as how much area each ____ represents

a. degree b. byte c. pixel d. focal point

Environmental & Atmospheric Sciences