Solution:
a) Lamar went skiing on a mountain that is about 3 kilometers high. This is because the other units are too small to measure the height of a mountain.
b) To wash his car, Omar used 20 liters of water. This is because 20 milliliters of water is too small to wash a car.
c) Melissa ate an apple that had a mass of about 150 grams. An apple can not be as heavy as 150kg.
