Answer:
Its C: Use the first column of data for the x axis the second column for the y axis and plot the data in a line graph to show the growth trend.
Explanation: i took the test lol
Answer:
D: 4.6 x 
Explanation:
4.6 x 10^{9} = 4,600,000,000
Earth is approximately, 4.6 billion = 4,600,000,000 = 4.6 x 10^{9}
They have evolved into the best length for their environment.