No. Black holes make their presence known by their extremely intense gravitational field; the gravity is so high that the theoretical "escape velocity" would be faster than light.
But gravitational forces decrease in proportion to the square of the distance away from the object, and the nearest black holes are believed to be a quite distant. The Earth's gravity is not nearly so intense, but it's RIGHT HERE, and so the Earth's gravity is the only force we feel.
Black holes does emit radiation, but they cannot be detected from earth. We use gravitational lensing to "see" the black holes.
Earth is a planet. Center's of galaxies sometimes contain black holes. Planets can't be black holes.
No, Black Holes are not located in Earth's thermosphere. Black Holes are massive cosmic entities found in space, whereas the thermosphere is a layer of Earth's atmosphere.
Yes, that's where they are. A black hole on Earth would utterly destroy the Earth, in a very short time.The existence of black holes is now generally accepted, by the way.
No - at least no black holes as defined by physics.
No. Earth was formed by the accretion of material in the protoplanetary disk around the newly formed sun. Black holes were not involved.
The Earth has never been endangered or harmed by a black hole, and chances are, never will be.
Black holes do not form on Earth. Black holes are created when a massive star collapses in on itself, leading to an incredibly dense core where gravity is so strong that not even light can escape. These events typically occur in space, not on Earth.
Black holes could be dangerous to people if people were close to a black hole, but there are no black holes near the planet Earth (as far as we know) and the closest one is probably in the center of the Milky Way galaxy, which is about 80,000 light years from Earth, which is a safe distance.
No
Black holes emit so very little radiation they are hard to see. Many black holes lie at the center of galaxies and there they are hidden by stars and dust.
They don't. They never have. They never will.