Answer:
the fertilizers contain nitrogen potassium and phosphorus . this makes the plants and algae grow faster
Explanation:
Fertilizers supply plants with the elements that may be missing or in short supply in a form that can be used by the plants for faster growth. Most fertilizers supply nitrogen, phosphorus and potassium
Temporary changes would be weather, since it can change at any givin time another example would be tides coming in because they vary by day, or wet sand becoming dry sand!
Autotrophs use photosynthesis to feed itself. An autotrophs is a plant that provides for itself and does not need to prey among other animals.
A light-year is how astronomers measure distance in space, hope this helps ^^
