Question

I need some one to write a passage

Answer 1

Part A is 2.5 x
`10^(-5)` because the decimal place has been moved five times to the left, which makes it negative.

Part B is
First, find what the diameters of both things are written out.
1 x
`10^(-5)` = .00001
1 x
`10^(-4)` = .0001

Now find out how many times the size of a cell has to be multiplied to equal the diameter of a grain of sand.

.00001 x 10 = .0001
.0001 = 1 x
`10^(-5)`

So the diameter of a grain of sand is 10 times longer than the diameter of the average cell in the human body.