No.
The Earth used to orbit the Sun slightly faster in the past and also it spun on its axis allot faster in the past.
since the creation of life on Earth.
They have been on Earth since Earth has existed.
it has existed since the beginning of life no one crated earth as far as we know it.
The Earth rotates once in about 24 hours with respect to the sun and once every 23 hours 56 minutes and 4 seconds with respect to the stars (see below). Mars rotation is 24 hours, 39 minutes, and 35 seconds if you are interested in the solar day or 24 hours, 37 minutes and 22 seconds for the sidereal day. Since the planet only rotates about 40 minutes slower than Earth, this is one category where the two planets are not very different.
it has been for 90%
existed since the planet cooled
for as long as they can they live in the ocean .
since there are 60 seconds in one minute, and there are 210 minutes in 3 hours and 30 minutes, there are 12,600 (210 x 60) seconds in 3 hours and 30 minutes.
it is a fish that has been around since the planet earth has existed.
Since an hour has 60 minutes, and a minute has 60 seconds, just multiply the number of hours by 3600 (this is 60 x 60).
Half an hour - since there are 3,600 in an hour.
What time period were you asking about? If hours, since there are 60 minutes in a day, 1152/60 = 19.2 hours. If seconds, since there are 60 seconds in a minute, 1152 x 60 = 69,120 seconds