What is secondary succession and what is a primary succession

the answer is d. 4

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  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.

pecialized keyboards

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr