Which marine habitats would have the least access to primary producers?
a.
salt marshes and estuaries
b.
coral reefs and lagoons
c.
mangroves and intertidal zones
d.
deep sea and sea floor

Correct answer choice is :

D) Deep sea and sea floor

Explanation:

The producers in all oceans, including the coral reefs, are essentially algae and phytoplankton, tiny photosynthetic plants that create food from water and sunlight. General forms of algae, like kelp, exist in cooler waters.Marine environments are the home to seaweeds, or marine algae, seagrasses, which are the only aquatic flowering plants, and mangroves, placed on muddy tropic beaches.

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.