Which of the following characteristics do all of the outer planets have in common? a. they lack moons. b. they are small and dense. c. they have liquid cores. d. they are mostly made up of hydrogen and helium.

The answer is D. They are mostly made up of hydrogen and helium.

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.