I. Mercury forms an upward meniscus in a tube because: A. it has high relative density

B. it has high cohesive force

C. it has low surface tension

D. it is subjected to high atmospheric pressure

E. it wets the walls of the tube.
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uranium fissions/breaks up giving out energy and neutrons

the correct choice is a .

do not post any more test or exam questions on

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.