Answer:
Keeps tides on the shore and away from the city
Explanation
The amount of sample that is left after a certain period of time, given the half-life, h, can be calculated through the equation.
A(t) = A(o) (1/2)^(t/d)
where t is the certain period of time. Substituting the known values,
A(t) = (20 mg)(1/2)^(85.80/14.30)
Solving,
A(t) = 0.3125 mg
Hence, the answer is 0.3125 mg.
Would it be lack of water and food?
The six basic elements of weather include temperature, humidity, atmospheric pressure, wind, precipitation, and cloudiness.
~I knew this was asked 5 days ago, but I hope this still helps.
