1. D i think
2. A.
3. B
4.C i think
5. A
Hope this helped
Answer:
Once tartar has formed, only a dental professional will be able to remove it from your teeth. So, visit your dentist every 6 months to remove any plaque and tartar that might have formed and to prevent further problems.
Explanation:
B is the answer :) have a great day!
Answer:
The growth of the plants is the dependent variable, the stuff added to each plant is the independent variable, the plants that don't receive treatment/other stuff are control variables.