the answers are 1 3 4 and 5
B.
Asbestos was used in housing for many years because it was cheap to manufacture and was amazingly heat-resistant, but was found to be incredibly dangerous, causing innumerous accounts of lung cancer and related problems.
This is from memory, but I will double check after I answer.
<span>The sum total of all the chemical reactions that occur in organisms is called-</span>Metabolism
B, (layer C is the youngest layer) :)