That is completely unpredictable at this time. Best can be said is probably not this week.
Depends on how big the comet is, where the comet hits, and what religious beliefs you have.
VERY likely.
Actual collisions are pretty rare. Most 'space debris' burns up in the atmosphere long before it hits the planet.
If a comet hits the ground than the gravity will be greater or lesser?
Very little, actually. A comet has essentially no effect on the Earth, unless it actually HITS the Earth. When that happens, the effect will depend on the mass of the comet, but we do believe that this was probably what killed off the dinosaurs - and most other large animals on Earth - 65 million years ago. It HAS happened before, with catastrophic effect. It WILL happen again - if we're not ready to prevent it.
You usually get a crater, with surrounding damage.
Unless the comet actually hits the Earth, there would be no effect whatsoever.
Actual collisions are pretty rare. Most 'space debris' burns up in the atmosphere long before it hits the planet.
A large meteorite can. Also an asteroid or a comet can cause a crater.
Yes they all could destroy Earth depending how big it is, how big the impact is when it hits, and where it hits,but its possible. Hope this helps.
Asteroid can last up to 100 years before it hits earth.
No. Comet's are made of ice, dust, and rocks leftover from the formation of stars. They usually circle the sun. Now: A Meteor is a rock in space. When it enters earth's atmosphere it becomes a meteoroid. When it hits earth's surface it becomes a meteorite.