Is a plankton a herbivore, carnivore or producer

it's a producer

Explanation:

it's a producer because plankton is known as plants they make their own food

Its a PRODUCER because Phytoplankton are tiny single celled plants too small to see with the naked eye. Animals that eat phytoplankton are called herbivores. The most common ocean herbivore is zooplankton.

Explanation: Honestly hope this helps.

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.

to this answer it would be edge enhancement