60 years is three half life for the substance, so 40*1/2^3=5
Proteins is made up of a sequence of an amion group, a carboxyl group, a hydrogen atom and a side chain bonded to the centralcarbon atom.
this answer is True; weeds are specific variety of plants that strip the nutrients from the soil.
Answer:
A.........................
Answer:
a. Through the leaves
Explanation:
the plant absorb carbon dioxide through their leaves.
