Slow moving vehicles must display emblem at the rear to warn of their low speed. a. a red square b. a yellow triangular c. an orange triangular

option C

Explanation:

The correct answer is option C

An orange triangular sign on the rear of the vehicle will show that the vehicle will move at a slow speed.

Warning Sign is an important method of conveying the message. Warning sign helps for the smooth movement of the traffic.

A car with an orange sign on the rear will inform the fellow driver that the vehicle is slow and they can overtake it.

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.