<span>C. Logging slows erosion and flooding upstream.</span>
<span>discovered that there were other galaxies besides the Milky Way. A. Edwin Hubble. B. Sir Isaac Newton. C. Galilei Galileo.</span><span>Jun 5, 2015</span>
Answer:
I would go for diseases.
Note that I might be wrong! Always double check your answer! :)
Stay safe and Merry Christmas!
Half life does not depend on the mass of the sample.
Half life of N16 was determined to be 7.13 seconds by Godwin H. in 1962, according to Wiki.
Note that this is not a geography question. Please use the appropriate subject/category when asking questions in the future.