If you were to suddenly transport to jupiter, what would happen to your mass and weight?

Your mass would not change... it's a constant. However, your weight would increase, because the force of gravity (directly related to the mass of the planet) would increase substantially. (Gravitational force is directly proportional to the mass of the two objects in the field, and inversely proportional to the square of the distance between them). You can thank Newton for that equation.

i am positive it is c. condensing but i may be wrong

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.