Rip currents occur when -- O water moves parallel to the coastline.
O water flows away from the shore, moving sand with it.
O waves hit the shore at an angle.
O water moves towards the shoreline.

true is the answer : )

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

i hope this you

layer 3 is younger than layer 6.