In an area where a river has cut deep into Earth, there are several layers of very different rock exposed. The oldest rock layer is most likely to be layer that is A. Below the other layers

B. The thickest layer

C. The most rich in fossils

D. Igneous intrusive rock

In an experiment, how can i change human errors? be specific.

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?

Afisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. it takes a time of 2.70 s for the boat to travel from its highest point to its lowest, a total distance of 0.700 m. the fisherman sees that the wave crests are spaced a horizontal distance of 6.50 m apart. a. how fast are the waves traveling? b. what is the amplitude a of each wave?