What is an oscillation on waves?

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Aball horizontally thrown from a cliff at 8m/s

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?