Easy
how many times will it double
80/20=4
double 4 times
2*2*2*2=16
16 of them after 80 mins
Answer
Non of the above
Explanation:
Cumulonimbus clouds are associated with extreme weather such as heavy torrential downpours, hail storms, lightning and even tornadoes. Individual cumulonimbus cells will usually dissipate within an hour once showers start falling, making for short-lived, heavy rain.
Option A
DNA is always synthesized in the 5' to 3' direction, meaning that nucleotides are added only to the 3' end of the growing strand.
Answer: c) biologists would track the number of species and their relative abundance in the gulf coast region in 2009, 2010, and 2011
