A human hair has a thickness of about 70 micrometers. How many meters is this?
O A. 70 x 10-3 m
B. 70 x 10-6 m
C. 70 x 10-9 m
O D. 70 x 10-2 m
SUBME

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to