yes
Usually they are fine, but if one becomes to big and spread it may kill the other plantA2. Some plants are parasitic, they take nourishment from their host plant. Others are epiphytes, they just perch on a host plant, but without taking nourishment.Some plants such as fungi aid in the decay of other plants.
yes
No. Most plants will react badly to salt.
Is this a serious question!?
no
citric acids react with each other
Neon does not react with other elements.
~I am still in the middle of testing this but heavy metal seems to stunt plants growth.~
they are in fright and hide
Photosynthesis is the process by which plants react to the sun and process carbohydrates.
Tundra means an area where plants can't grow. Considereing there would be no plants in tundra, animals wouldn't react to them.
Neon does not react with other elements.