Sodium fluoride is a chemical that is added in many municipal water supplies to prevent tooth decay. You can even find it in your toothpaste if you look at the ingredients. Sodium fluoride is a very safe and effective chemical used in lots of oral products because of its benefits against tooth decay. Hope this helps!
Answer:
D
Explanation:
Co-dominance is when both alleles combine to form an intermediate phenotype. It's like crossing a red and white flower and getting a pink flower.
It is water pollution, since you are polluting the river.
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Answer:
because during the measurement of the fetus, the fetus shows 40% of its natural length
Explanation:
The total length of each fetus is multiplied by 2.5 to obtain the actual length because during the measurement of the fetus, the fetus shows 40% of its natural length
Answer:
carbon dioxide then oxygen
Explanation:
