The amount of work done to produce a sound determines which property of sound waves? a. frequency b. wavelength c. pitch d. amplitude

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

The law of reflection states that the angle of reflection is equal to the angle of

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem