Identify the letter of the layer that contains the oldest fossil. Explain why you selected that layer.

How does the diagram explain ocean currents? earth tilt 23.5 degreesquestion 1 options: earth's tilt causes uneven heating of earth which causes currents.earth's tilt causes the ocean to move because of gravity.earth's tilt and its rotation cause currents.earth's tilt causes uneven distribution of salt which causes currents.

Due tonight 10 points will mark brain

The largest unit within which gene flow can readily occur is a