it could be the shortening of the day or the drop in temp. depends on the plant species
Recycling will cause less waste. That would cause less problems.
Only heterotrophic organisms remain after a change in the environment
Burning leaves would be a chemical change because once the leaves are burnt, you can't turn the ashes back into leaves.
A plant with long red leaves that would thrive in a sunny environment is likely a type of cordyline plant.
A plant with large red leaves that would thrive in a sunny garden environment is the Red Abyssinian Banana plant.
That would be a chemical change.
you would have to change its place cause we would all burn cause its right next to the sun.
how fast it is going
Some nonliving factors in the environment that can cause change in species over several generations would be climate and water. Water can cause animals to create gills and climate can change the outside of organisms.
Water Surface
I would say summer, because in spring, the leaves are just starting to grow. In fall, the leaves change color and fall off. In winter there are no leaves. In summer the leaves have all grown back and are prospering.
Organisms change significantly, or evolve in biological terms, only when there is a need for significant change. An example would be a natural disaster occurring, causing the founder effect or vast changes in the environment. This change in the environment might force a species to evolve unable to survive; those who don't have the needed adaptation would die out, leaving the "survivors" to reproduce. If no drastic change that would cause a need for adaptation occurred through geological time that pertained to a certain species, then no drastic change in the species itself would occur.