Ascientist could use dna as a molecular clock to do which of the following? (2 points)
o to determine how many offspring a chicken has during its lifetime
o to determine the amount of dna in a person's body
to determine how long ago two species of animals shared an ancestor
to determine the age of a very old rock

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

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explanation: