Question

what is sadness???????????????​

Answer 1

Answer:

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Answer 2

Answer:

Sadness can be normal, and is only an indicator of underlying disease when feelings become excessive, all-consuming and interfere with daily living.