Erosion and Weathering can cause changes in earths surface but how does erosion alone changes the earth surface.

Will a heavier bowling ball hit pins better than a lighter bsll

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?