CFCs and their associated compounds were developed in the early 1900s as a non-toxic, non-flammable solution to other more dangerous products such as ammonia.
Dmitri Mendeleev
<span> Dmitri Mendeleev and Lothar Meyer individually came up with their own periodic law "when the elements are arranged in order of increasing atomic mass,
certain sets of properties recur periodically.</span>
Option 3- Avogadro's, Charles's and Boyle's
Answer:
Mobiles are made from many non-renewable materials which have been extracted from the earth – such as: Metals. Plastics.
Explanation:
Ice is constantly subliming to form a layer of water vapor
