How do plants produce mechanical weathering? a. they break rocks apart through acid wedging. b. they break rocks apart through frost wedging. c. they break rocks apart through root-tip wedging. d. they break rocks apart through stem wedging.

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water