Answer:
D.
Explanation:
The periodic table is divided into vertical periods and horizontal groups
 
        
             
        
        
        
Answer:
-  1) Somewhere it billion years ago it was considered that there were no air , no earth , no sky , no sun , not even light . The universe was a highly dense and infinitesimally small lump . Suddenly,There was a big explosion.The"Big Bang ".And then was light . That probably was the beginning____ The beginning of matter,The beginning of light and the time !!.
- 2) The big crunch is a hypothetical scenario for the ultimate fate of the universe. 
<h2>Hope this helps u :)</h2><h2>Not cheated nor copied answer .</h2>
 
        
             
        
        
        
Answer:
It has many functions, including delivering nutrients and oxygen. The four main components of blood are red blood cells, white blood cells, plasma, and platelets