Answer: C.
Explanation: Your mass can't change due to the law of energy conservation, but your weight would be less because of the lack of gravity on mars
Galactic recycling is a natural phenomenon in which the stars expel some gas into the space so that it would mix with the interstellar medium. As a result, this would produce new younger stars. So, basically, the concept done here is the mass and energy conservation. In order to create new species, the energy must come from another source.
If each side of the equation has the same number of atoms of a given element, that element is balanced.
Convection currents in the mantle are what causes the movement of tectonic plates. As the extremely hot molten material from the mantle rises toward the crust, it cools enough to become denser and sink back into the hotter area of the mantle.
Answer:
Part A: When air is left in specific environments, it can either expand or contract depending in the given environment, so, if left in a cold car for a few hours, the air inside said balloon will contract.
Part B: If left in said car on a very hot summer day, the air in said balloon will expand, and if left in said car long enough, said balloon will explode due to the air inside expanding
Hope this helped!