Answer:
A. Making an observation
Explanation:
Before you can communicate findings, you first need to have findings. And before you can test a hypothesis, you first need to come up with a hypothesis, which can be done by first making an observation.
Answer: They both circulates from a region of lower concentration to a region of higher concentration.
There are 3 sub atomic particles in an atom namely electron, proton, neutron. The charged species is known as ion.
Everything I look at they all say about 8.7....