The first question's answer is
Answer:
When sodium chloride dissolves in water to make a saturated solution there is a 2.5 per cent reduction in volume. ... The solubility of salt does not change much with temperature, so there is little profit in using hot water.
Long term because if you leave something out to be weathered then it can’t be unweathered because of the drastic change of the object.
B.To transmit signals first it got to reach the antennas thingys to send the signal thats how we get our data and wifi on our phones
