Answer:
A. A Densley populated country.
Explanation:
I think A is the answer it makes the most sense to me
Work is done on an object only if the force and displacement are in the same direction.
"A" bonds with "T", and "G" bonds with "C" (A-T) (G-C)
Add starch indicator solution to the water in the beaker. If the indicator solution changes color than starch is present.