What causes satellites to remain in orbit above Earth? A) Satellites achieve a balance between gravity and their velocity that keeps them in orbit.

B) Satellites reach their escape velocity with the help of scientists and engineers.

C) Satellites have a circular or elliptical orbit.

D) Gravity pulls satellites sideways around Earth's curved surface.

d. air pressure decreases as altitude increases.

  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.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.