They usually use ear tags
Answer:
An increase in temperature increases the rate of evaporation and decreases the relative humidity of the environment. The more stomata on the leaf, the more water evaporates the leaf.
In addition to lowering carbon dioxide levels during photosynthesis, light can have a direct effect on guard cells, causing them to swell.
The simplest organic molecules,hydrocarbons,contain only hydrogen atoms bonded to a carbon backbone