<span>Acid rain forms when oxygen and nitrogen in the air mixes with sulfur oxides to form sulfuric acid, and that is the result</span>
The correct answer is A.
It starts with a hypothesis, which is basically and educated guess.
Then it goes to a theory, which is proven with a bunch of data.
Then it goes to scientific law, which is when the theory works with centuries of data. Not even scientific laws are guaranteed to be true though.
<span>B.) traffic congestion
</span><span>C.) increasing the temperature of the urban heat island</span>
Answer:
Explanation:
HPV DNA replication during its life cycle occurs in three separate phases (reviewed in [1, 2]). After viral entry into the cell nucleus and the activation of viral gene expression, the viral genome copy number increases to several hundred copies per cell during the initial phase of genome amplification.
