The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium....
It can be a) 12Hz.................
Answer:
B. Developed out of efforts of man trying to explain our physical environment.
Explanation:
This is because physics, as we all know of, is considered to be <em>crucial to understanding the world around us</em>, making it the most basic and fundamental of science.