17. What are the four basic properties of waves? (What are the four measurements you can take?)

Answer The basic properties (parts) of a wave include: frequency, amplitude, wavelength and speed. Frequency is a measure of how many waves pass a point in a certain amount of time.

Explanation:

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.