Answer:
Explanation:
It is carbon because its used to build macromolecules
Answer:
A and C
Explanation:
A. because when we humans are burning maybe our refuse or garbage it will go up to the ozone layer causing air and then it will then result to carbon dioxide.
The correct answer is -
E. double coincidence of wants
D. He controlled variables by studying one or two traits at a time
Answer: machinery and equipment developed from the application of scientific knowledge.
