He said let there be life and there was, it was in Genesis.
God created Earth
Life on earth is the place to do the mitzvos (God's commands) while the soul is still inside the body and has free-will. The afterlife is not a time of free-will and it is too late to decide to suddenly start doing God's commands. There is more, but that is one difference.
god made the earth in seven days
no one on earth is god, the only time anyone on earth was god is when Jesus came to earth
Work hard and Fear God. That is the way you can improve your life on earth.
If they weren't there wouldn't be life because god made us and the earth.
Yes God is All-Knowing
the first pineapple on earth started from God.
because god created them
No, the Earth was uninhabitable for millions of years.
It's already on there when u start
It all depends on wether you think god created every thing or if your an atheist. If you believe in god then no it did not start in the ocean. If you don't believe in god then actually there are two suggestions or theories A: is that the earth was like Venus but then later cooled down and meteors struck it which meteors had ice on it witch then converted into life. And the other theory, B: is that all the volcanoes created steam which fell to the earth after it cooled. Personally i believe in god but if i had to choose a theory i would have chosen theory A. But that is Just me.