Answer:
D) increased haze and smog caused by auto exhaust and tire particulates.
Set this up as
10 = 40 (1/2)t/28
and solve for t in years.
10/40 = (1/2)t/28
log(0.25) = (t/28) log(0.5)
t = 28 log(0.25) / log(0.5) years = 56 years
Test the answer:
56 years = 2(28 years) = 2 half-lives, so the remaining amount should be 1/2 of 1/2 of the initial amount, i.e. 1/4 of the initial amount, and 10 mg = 1/4 of 40 mg.
Answer: a. True
Explanation:
In the pursuit of acquiring more fresh water, fog harvesting was introduced. It is a way to capture fog which is water vapor that is condensed but close to the surface. Fog has the tendency of reverting to water's liquid form when it comes into contact with objects.
Collecting water from fog involves using a net where the water will collect and fall due to gravity into a conduit such as a trough or gutter that will then take it to a storage tank.
Answer:
the answer woukd be 89and uy and gh and eurh nd hu8
Explanation:
