if you toss a coin straight upwards while riding in a train, where does the coin land when the motion of the train is uniform along a straight -line track? When the train slows while the coin is in the air ? When the train is turning ?

Faster than the speed of light

Explanation:

the results is a decrease in air temperature with an increase of altitude.

explanation:

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.