challenges faced by photosynthetic organism in terrestrial environment?

Answer 1

here's a few:
Canopy issue, certain organisms may not live in an environment with direct view of sunlight. Like underneath trees ina forest.
Night time provides no sunlight for food.
Winter provides less sunlight hours than summer. And photosynathetic organisms can no longer store as much energy. they must find ways to conserve energy instead, this is why some trees lose their leaves

Answer 2

photosynthetic aquatic organisms that stay interior the water danger loss of existence while the water is murky or polluted as photograph voltaic cant pass via water. this prevents the organisms to photosynthesise... they cant make nutrition, they die.