What does it means when people says that energy is as old as time itself

Energy is what created the universe, and all that is present now existed since the beginning of time, just maybe in different forms.

explanation:

i think option no d is the correct answer

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: