A is your answer (:
hope this helps
<span>Earth’s rotation takes about
24 hours. By definition, the rotation of earth is the amount of time it takes
to rotate once around its axis. On average, this apparently happens once a day i.e
after every 24 hours with respect to the sun (solar day) and once after every
23 hours, 56 minutes and 4.09 seconds with respect to the stars (sidereal day).
</span>
It help in searching for location
It’s easier to locate
It saves time
Although a vast majority of seawater is found in oceans with salinity around 3.5%, seawater is not uniformly saline throughout the world.
Big Bang theory<span> says that our </span>universe began<span> 13.7 billion years </span><span>ago</span>
