Answer: Chemistry Questions
Option D They are speculations
Explanation:
These scientific theories are speculations that shed light on how the chemical reactions occurs and their reasons that constitutes to this change. Their are number of theories that helps in giving justifications why elements react with each other and their nature that reacts to other chemicals or elements.
September 1, 1939 – September 2, 1945
A bill can be introduced in either chamber of Congress by a senator or representative who sponsors it. ... The president can approve the bill and sign it into law or not approve (veto) a bill. If the president chooses to veto a bill, in most cases Congress can vote to override that veto and the bill becomes a law.
When having cork throw homemade microscope Robert hook discovered complement that he called cells.
