plzz answer my question

what is trophic nutrition?

There is no term as trophic nutrition.

Trophic means related to feeding or nutrition.

Trophic nutrition is of two types:

Autotrophic nutrition: A type of nutrition in which organisms prepares its own food. For example, Plants.
Heterotrophic nutrition: A type of nutrition in which an organism depends on others organism for its food. For example, animals.