if anything it would be reasonable to expect it to lose mass.
a closed system will not gain or lose mass
The mass of a seed leaf changes depending on the water and internal processes. When some seed leaves lose water due to transportation, they lose mass. Other will start to sprout and produce their own food, which cause them to gain mass.
Plants may lose mass when they don't have water due to dehydration and shrinking of cells. Water is essential for maintaining turgor pressure, which keeps plant cells rigid and upright. Without water, plants may wilt and appear to lose mass.
depends on the salt content of the potato and how concentrated the salt is. the more salt there is in the water than the potato- the more water will exit the potato which then loses mass.
Comets do not gain mass with each orbit around the sun. Their mass remains relatively constant as they travel through space. However, comets may lose mass gradually over time as they release volatile materials such as water vapor and dust, which form the comet's tail.
No, because they do not gain energy in falling.
Water doesn't gain or lose mass when it freezes. Ice is less dense than water, this is why it floats. It may seem heavier, but there is no way that water can gain mass from just losing energy. Water does evaporate though even at very low temperatures, so if there is an apparent weight loss it is because of evaporation.
An egg will lose mass in salt water because of osmosis. Water flows out of the egg into the salt water solution, which has a higher concentration of solutes. This results in the egg losing water and mass.
If we are talking the weight mass ratio, it will be the carrot.
no
because it does
It is slightly higher than water, 1140 kg/m3