A central idea in The Code Book is the concern that much of the world's information is not secureWhich lines from the passage best support this central idea? Check all that apply.

Paint should be stored and mixed in an osha-approved room with all of the following, except: a) adequate ventilation b) ventilation hoods c) unshielded electrical devices d) fire extinguishers

What is the missing step in this proof? scroll down to see the entire proof.u

Did the universe cool off or get hotter as it expanded after the 'big bang"?