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...
a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geology. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable quantities in nature, as by the action of heat or water. a particular kind of such matter: igneous rock.