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
in the next 768 years it is asteriod tenesa
The next time a asteriod will hit earth will be in the next 1 million years.
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
Neptune is in between Mars and Jupiter
an asteriod
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
biomass can affect the earth