The gravity will hold water in the pool however the lack of humidity in the atmosphere would probably cause the water to evaporate very rapidly. Plants would have problems as well with this not to mention a requirement for an atmosphere that is composed of the gases they need for them to grow.
what happens when a plant does not have enough water?
To absorb enough sunlight.
Oasis
Maybe they don't have water or enough sunlight or the right soil.
Just enough to achieve sprouting of seed
A desert.
They wouldn't
In a manner of speaking, yes, since it determines whetherthey grow. Yes, it does have an effect on how plants grow. If you give a plant too much water, it may wilt and die. If you don't give a plant enough water, it may shrivel, wilt, not grow, or die.
Geotropism, the tendency of some plants to grow straight up, against the force of gravity.
Water helps plants grow
Far too cold, too much gravity, really high winds of poisonous gasses. Also no soil for plants and no water.
No. Plants are designed for the roots to grow in the direction of gravity and the leaves to grow against gravity. A plant grown upside down will adapt by curving its stem upwards again.