Plants use their roots to get oxygen. Oxygen is dissolved in water, and there's also air pockets in their grow medium to provide a source of oxygen. When you water your plants too often, its roots are sitting in stagnant water which no longer has any oxygen left.
Which point(s) in the water cycle below best illustrate(s) water changing to a gas, and which term(s) could describe it? Is it.. 1; sublimation & evaporation. 2; evaporation only.
This water is constantly moving from one * water source to another. As it moves, it may change from liquid water into a solid (ice or snow) or a vapour, or back again. But the total amount of water on the Earth stays the same. How it moves and changes is called the water cycle.