This would be true. On Jupiter you would weigh 234 pounds if you were 100 pounds on Earth.
Mercury a terrestrial. It isn't made of gas.
Its B: reduce the amount of energy needed to do the work by putting the work onto something else
Potassium is the 19th element so it is B
Because cool air rises and warm air falls, so if you wanted the cooler air, you would need to go to higher elevation
