D) Gases such as carbon dioxide and methane
And the more of these from gas emissions, etc. then the more global warming.
FYI: ozone helps to blocks cosmic gamma rays from reaching earth
Answer:
of the low pH of the vagina.
Explanation:
The pH of the vagina is maintained at highly acidic levels to prevent the germ buildup. The range of vaginal pH is around 3.8 to 4.5. The very low pH of the vagina creates a hostile environment for sperms and most of the sperms are killed as they enter the vagina due to the acidic pH.
Apart from supplementing the sperms with energy, cervical mucus serves to protect the sperms from the hostile conditions of the vagina. The cervical mucus has an alkaline pH at or near the ovulation to protect sperms from acidic pH of the vagina and to facilitate fertilization.
I believe it's oxygenated or oxygen rich blood away from the heart.
What is teligram i would like to help?
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