Why are many scientists concerned about humans adding large amounts of carbon to the atmosphere by burning fossil fuels (combustion)? A. When carbon is released into the atmosphere it floats into outer space, and is lost forever. B. The atmosphere has a limited capacity to absorb and recycle carbon naturally. C. If the atmosphere gains too much carbon, birds won't be able to fly. D. Carbon is a poisonous chemical, which can kill plants.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

f is prop to m1xm2 double m1 double force

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach