What is the oldest form of biotechnology

A. selective breeding

Explanation:

The unit spoke of this first, referencing it's use for centuries. Then later introduced an example of selective breeding used later called hybridization. And it graded correctly

plato users

given bodies of water

pacific / arctic / indian / southern

[ a ] the caribbean sea

[ b ] the northern ocean

[ c ] the atlantic ocean

[ d ] the barents sea

with this being the given answers

it's c. (to reduce the greenhouse effect/carbon gasses)