Answer: Natural science can be divided into two main branches life science and physical science. Life science is alternatively known as biology, and physical science is subdivided into branches physics, chemistry, earth science, and astronomy.
No, they are not connected.
It may be A
I'm not really sure but thats what I think.
<span>c. phytoplankton.
</span><span>
Planktons can’t be seen by the naked eye and they require microscopes to be detected. Planktons usually float in the water and they cannot move on their own that’s why they are dependent in the movement of the water. </span>