B. DIRECTIONS: Fill in the blanks with the agents of weathering of rocks in each situation. Choose from the words listed in the box. ANIMALS HIGH TEMPERATURE OXYGEN PLANTS WATER 11. Moving_ can lift and carry rocks from the bottom of a river or stream. When the rocks return to the ground under water, they can hit other rocks and break apart. 12. Repeated heating and cooling of some rock types can cause rocks to stress and break, resulting in weathering and erosion.. cause rocks to expand, then as temperatures cool the rocks contract. 13. Oxidation occurs when creates a chemical reaction, like rust on iron, which makes the rock softer with time. 14. that take root in a crack of a rock can cause the rock to break apart as the plant grows and expands. 15. that burrow underground, such as moles, gophers or even ants, can also cause physical weathering by loosening and breaking apart rocks.​