Which of the following is an example of erosion? water freezing inside the cracks of rocks
stalactite and stalagmite formation in caves
plant roots pressing against the sides of rocks
glaciers moving rocks and soil through a valley

What is the maximum amount of al2(so4)3 which could be formed from 15.84 g of al and 12.89 g of cuso4?

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

What is the independent variable in this investigation? mass volume sample number substance density