How much the atlantic ocean has grown since you were born (2000)?
how much the atlantic ocean has grown since columbus sailed in 1492?
how much the atlantic ocean will grow in the next 200 years?
from what era in geologic time did the atlantic begin forming?

It's the picture of the Atlantic ocean. On average, the Atlantic Ocean is growing at a rate of about 2.5 cm/year.
So,

1. Since 2000, it grows about (2018-2000) x 2.5 = 45cm
2.( 2018 - 1492) x 2.5 = 1315 cm
3. 200 x 2.5 = 500 cm
4. The  Atlantic begin forming since mesozoic era

The enviroment with hedge hogs