Fairly fundamental physics and chemistry. There’s nothing special about those elements, we only value them because they happen to be rare and reflect light in interesting ways. The same forces created plutonium, arsenic and mercury too which can easily kill us (despite also looking pretty).
The Big Bang has nothing to do with evolution of living creatures.
What other shape would it be? A sphere is really the default due to there being no forces pushing in any particular direction. It’s the same basic reason bubbles are spherical too.
You have the cause and effect backwards. Life developed on Earth because it happened to be in roughly the right place. Most of the other planets in our solar system aren’t in the right place, along with countless billions of planets orbiting other stars.
Again, the Big Bang has nothing to do with the development of life. That said, there are lots of plants which are of limited use to us and a whole load which are actively dangerous or poisonous to us.
The vast majority of water on the surface of the Earth is salt water and the majority of fresh water on the surface of Earth is frozen.
Oil is nothing special. It’s one of the materials on the planet we’ve learned to make use of (though not always to the benefit of the species) but it’s in no way a necessity for our exstance. Again, there are loads of things on this planet which are dangerous to us too.
They weren’t created for your enjoyment. Species only survive if they procreate and perceiving members of the opposite sex as attractive is part of that. We find them attractive because we exist, not the other way around.
If the universe had been made by an intelligent creator specifically to serve our needs, I’d have a
long snagging list for them to address.