blood flows at a high pressure, so if the arteries are thin and less muscular, the arteries can explode due to the pressure. so it needs thick and muscular properties so that it can withstand the increasing pressure of the flow of blood.
im not sure why it needs to be elastic. Hope it helped :)
the answer is A because A always goes with T
First one is axis, second one is light and energy (I think), medium sized star, I don't know the forth one, sorry, 1,300,000 times bigger than the earth, I don't know the sixth one, and 9940.73° F.
Answer:
3) Condensación del agua en la naturaleza
El vapor de agua sólo se condensará en otra superficie cuando ésta sea más fría que la temperatura del vapor de agua, o cuando el equilibrio de vapor de agua en el aire, es decir, la humedad de saturación, se haya excedido.
Explanation: