drove dust and particles into the air which blocked the sun. lack of light killed all plant life. herbavors died because of lack of food. carnivores died because there were no herbavors to eat.
Several times. The latest was probably in 1908 (the Tunguska event).
asteriod
Not any time soon that we are aware of. If you are thinking of the "2012" hoax, that's entirely false.
Asteroids
a pile of rocks in space
There are currently no known asteroids predicted to hit the Earth in the near future. Scientists continuously monitor asteroids and comets that come close to Earth, and there are no imminent threats at this time.
an asteriod
Neptune is in between Mars and Jupiter
Im Wizards Vs Asteriods, An asteriod is about to hit earth. NASA sent a missle to destroy it but it wasn't able to. So, they decide to go to the wizard world and live their lives there. But Alex, Justin and Max decide to go up and space and destroy the asteriod themselves. Also, Alex is not able to graduate with her class.
the asteriod belt
the asteriod bet
There are currently no known asteroids predicted to hit Earth in the near future. Astronomers continuously monitor and track near-Earth objects to assess any potential impact risks, but at this time, there are no imminent threats.