How many times in the last century have meteorites struck and ...

[mia]

How many times in the last century have meteorites struck and killed people in North America?
   a. none
   b. only one
   c. only a few (less than five or so)
   d. about 15
   e. about 50 (one every couple of years)

Question 2

Why would astronomers have difficulty spotting a large incoming asteroid headed for Earth?
   a. It remains in a fixed position in the sky as it comes in directly, so astronomers cannot see its trajectory.
   b. It comes in so fast that they do not have time to see it.
   c. It is dark before becoming heated in Earths atmosphere.
   d. It is not an important topic to monitor for most astronomers.
   e. It is simply too big to seem as if it is moving.

[jaygar71]

Answer to Question 1

ANSWER: a

Answer to Question 2

ANSWER: a

[mia]

TYSM

[lindahyatt42]

Excellent