Spiral galaxies are and elliptical galaxies are . A. Spinning -- Growing
B. Expanding -- Spinning
C. Condensing -- Growing
D. Spinning -- Condensing

In 1915 the german geologist and meteorologist alfred wegener first proposed the theory of continental drift, which states that parts of the earth's crust slowly drift atop a liquid core. the fossil record supports and gives credibility to the theories of continental drift and plate tectonics.

How do oceanographers measure the salinity of ocean water?

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!