Reduce the amount of carbon, fossil fuels and methane in the atmosphere.
Answer:
Many parts of the cardiovascular system (including the heart) are influenced by gravity. On Earth, for example, the veins in our legs work against gravity to get blood back to the heart. Without gravity, however, the heart and blood vessels change – and the longer the flight, the more severe the changes.
Pollination.....................
Diffusion is across a semi-permeable membrane. The larger the membrane, the longer the diffusion takes
