Answer:
They produce or process nutrients in the digestive tracts of humans and other animals.
Explanation:
Answer:
they us concentrated scopes that go directly out of the atmosphere without any interruption
LOCAL ENVIRONMENT ISSUE:
People dump a lot of trash in the sea, and the sea creatures living there goes through a lot of trouble to live with all the muck getting in them. Of course, don't write it like that in your assignment - you'll get told off for the straight forwardness.
