Answer:
C.
Explanation:
Pycnocline is a layer in the oceanic body in which the density of water increases with the depth in the ocean. This change in density happens due to the changes in temperature and salinity of water.
<u>Other four words/phrases are related to the process of water purification. The only word which does not fit in the water purification process is Pychnocline. </u>
So, the correct answer is Option C.
Idk what you mean by heartbeat sumamry but, here’s a summary about it.
This is a summary about a article written by David Yoo which tells the story of a boy named Dave who tries to change his appearance, but comes across a big problem that hurts him physically. He has to decide between pretending to be someone he's not or revealing his true self to his friends and crush.
Controversies would be a noun
Hoped this helped!
Both sought after by other people