Aquatic plants have no difficulty getting water.
Land plants absorb water through their roots.
If there is no moisture available, land plants cannot grow, so the amount of available water determines which species of land plants will grow in a particular habitat. The water vapour in the cool upper atmosphere condenses and forms clouds. These water droplets may fall as rain, hail, snow or sleet. Some of the water that reaches the ground runs along the surface and collects in streams, ponds, lakes, or other bodies of water. The remaining water soaks into the ground.