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Author Question: About how many asteroids larger than 1 km in diameter are known to be in Earth-crossing orbits ... (Read 43 times)

cartlidgeashley

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on: Jul 13, 2018
About how many asteroids larger than 1 km in diameter are known to be in Earth-crossing orbits (those that pass through Earths orbit around our sun)?
   a. 20
   b. 100
   c. 500
   d. 1500
   e. 5200

Question 2

Approximately how long ago did the Chesapeake Bay impact occur?
   a. 5 million years
   b. 15 million years
   c. 35 million years
   d. 45 million years
   e. 70 million years


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lgoldst9

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Reply #1 on: Jul 13, 2018
Answer to Question 1

ANSWER: d

Answer to Question 2

ANSWER: c


cartlidgeashley

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Reply 2 on: Jul 13, 2018
Excellent

chjcharjto14

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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