At the point where the atmosphere starts. It's a matter of perspective. To a virus or bacteria, almost immediately. To an ant, it probably starts at about an inch. To humans, way higher.
The horizon.
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
the sky is part of our atmosphere which is in earth so it comes from earth
This is because it is the center of our solar system. Many items orbit around the sun. Also, it is unmistakable and almost always visible from some point on the Earth. There are no other objects in the sky with such a large impact on the Earth.... unless an object from the sky impacts the Earth (like an asteroid).
It is due to your perspective. You are so close to the earth and it is so large that the curvature is not easy to notice. As you increase your distance from the earths surface it becomes easier to notice the earth's curvature (from space it looks completely round.
The celestial axis. It is the point around which all stars in the sky travel. Polaris, the North Star, lies approximately on this line
The horizon.
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
The boundary between Earth and sky is known as the horizon
If you're talking about sky as in sky on this planet, then your answer would be the horizon (the point were the ground meets the sky from any vantage point on the surface). Or you could be talking about the atmosphere, which is the boundary between the earth and space and keeps life alive, and air on earth.
Horizon line. :)
Horizon line :P
We will definitely see more stars, but I guess, the sky will still look like a dome. Each point on that dome should be a "vanishing point" in the direction toward that point (the appearance of a point on the horizon at which parallel lines converge). Well, if the Earth had no atmosphere, the sky would be dark all the time (even during the daytime).
The sky is the Earth's atmosphere.It is not above you, you are in it.
You'd have to estimate from approximately when Earth was formed. You'd also have to decide at what point Earth became Earth. First is was a ball of magma, then it hardened, then the sky was red, then life began to form, then the sky turned blue, the first ce age occured, etc.