I'm not positive but i believe it would be a ruler with millimeters and centimeters
Answer: Item WE012003: Both a small stream and ocean waves can erode the solid rock of a cliff over time. Neither a small stream nor ocean waves can wear away the solid rock of a cliff.
Explanation: hope this helps!
A river that comes from rain, glaicers etc would be a good example of fresh water rivers. Cause the water is coming from something that is most likely been unthouched by man or has been filterd and cleaned from minerals in the ground.
Answer:
changes in the environment and or cross breeding
Explanation:
