It takes 687 days for Mars to orbit the Sun, which is 1.88 Earth years. 1.88 x 1.88 = 3.5378 which has a cube root of 1.5237 meaning that on average Mars is 1.5237 times the Earth's average distance from the Sun.
boulder definition: The definition of a boulder is a large, smooth rock. (noun) When you build a retaining wall and use a large rock in the wall, this rock is an example of a boulder. A rock that has been detached from the earth by erosion or for ot...
stone (countable and uncountable, plural stones or ) (see usage notes) ( 1 uncountable) A hard earthen substance that can form large rocks. 2  A small piece of stone, a pebble. 3  A gemstone, a jewel, especially a diamond. ( Britain, plural: stone) A unit of mass equal to 14 pounds.