Question

what are the necessary conditions for autotrophic nutrition and what are its by-products?​

Answer 1

the necessary conditions for autotrophic nutrition is presence of sunlight and chlorophyll with the presence of water and co2 also. it's by product is food(glucose)

Answer 2

here is the ans of your question....

autotrophic nutrition takes place by the process of photosynthesis
the necessary conditions for the process of photosynthesis/ autotropic nutrition are..

1 carbon dioxide

2 water

3 sunlight

4 chlorophyll

its end products are glucose, oxygen

hope this will help you