Cycles are essential to all living organisms.

select the best answer from the choices provided
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indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

6.4 cm (max) - 25 cm (min)

ugh fiel iente of insistí is did kiwis jaj

it is the most commonly accepted one