A 3.[04.03] Which describes how chemical changes are different from physical changes? (1 poir
Chemical changes can be measured, but physical changes cannot.
Chemical changes involhy the formation of a new substance.
Chemical changes release energy, but physical changes absorb energy.
Chemical changes cannot be caused by oxygen.
4. [04.06]

uranium fissions/breaks up giving out energy and neutrons

a electromagnetic waves

anchor = archer //

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.