Sixty-five million years ago, according to some scientists, an asteroid bigger than mount everest slammed into north america,  which, causing plant and animal extinctions, marksthe end of the geologic era known as the cretaceous period.

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

Answer questions from exploring further