Work = (force) x (distance) = (63n) x (1.5m) = 94.5 newton-meters = 94.5 joules
Most of our planet would rapidly become very inhospitable. Half of the planet would almost continuously face the heat of the Sun, while half would face the cold of space. Life could continue in a narrow twilight zone between the hot and cold halves.
Most of the Earth's water is stored in the Oceans - think of how huge the Pacific Ocean is for example!
So the correct answer is b. About 97% of the Earth's water is ocean water.
Ocean water is not good for drinking for people, and post of freshwater is stored in glaciers.
