C. they grow quickly due to the chemicals
For some reason I have a little bit of doubt that this is related to your schoolwork, however this is important to learn to not do so by mistake. This would take a few minutes of inhaling fumes and is a very painful way to die. Even if it doesn't kill you, exposure can lead to brain damage and chemical burns. 5-10 minutes of non ventilated inhaling.
Yes because you can't stop
Answer:
The correct answer is : low lying.
Explanation:
Placenta is generally characterized on the basis of the degree of coverage to the internal os that are as given below:
Total placenta previa, in this the the placenta covers the cervical os where as the partial placenta previa the internal os is covered partially by the placenta.
Marginal placenta is present on the margin or edge of cervical os and in low lying it is present near but not reach it.
Thus, the correct answer is : low lying
