Which phrase best describes the composition of Earth’s surface? mostly water and some solid rock
mostly solid rock and some water
mostly liquid rock and some water
mostly water and some liquid rock

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves