yengracojorisboo yengracojorisboo
  • 13-12-2015
  • Biology
contestada

How often does oxygen cycle through the atmosphere?
a. about every 1000 years
b. about every 1500 years
c. about every 2000 years
d. about every 2500 years

Respuesta :

Sophiag1315 Sophiag1315
  • 13-12-2015
about every 2000 years.

Answer Link
nrlindly
nrlindly nrlindly
  • 06-02-2019

B. about every 2000 years


Answer Link

Otras preguntas

how did Rome add territory
what is the LCM of 12 and 18
what is the better buy? 15 ounces for 1.79 or 12 ounces for 1.49
Which word in the sentence does the participial phrase modify? Clutching the handlebar tightly, Maria cautiously rode her new bicycle. A. cautiously B. rode C.
Sara is driving home from college for the weekend. The average speed of her car for the trip is 45 miles per hour. Write a verbal model and algebraic expression
The yard behind the Cindy’s house is rectangular in shape and has a perimeter of 72 feet. If the length l of the yard is 18 feet longer than the width w of the
The chief reason a person becomes a supervisor is A. motivation. B. confidence. C. work-related knowledge. D. personality
which Aztec city was the largest city in the Americas
How to solve y=-x+4; y=2x-8 using substitution?
A California Condor has a 114 inches in wingspan. How many feet is that?