It would be an absence of a chemical in a chromosome or DNA strand
Answer:
Its B-Contaminated hope this helped in any way!!! have a nice day!!
Explanation:
Probably because of history relation.
Hydrogen sulfide gas
Volcanic gases are gases from volcanoes. These are gases trapped in the spaces between volcanic rocks. The sources of this gases are the recycled constituents of the earth mantle, assimilated constituent of earth crust and groundwater, earth atmosphere. The principal component of volcanic gases are water vapor, carbon dioxide, sulfur dioxide , hydrogen sulfide. Gases varies depending on the volcano, water vapor is the most common among the gases.
Increases
In women that are pregnant, the effects of substances are far more adverse than they would be in a normal person, especially if the woman is taking more than one. For this reason, it is important for pregnant women to take as much care as possible of their bodies and refrain completely from smoking and drinking alcohol, as both of these activities are detrimental towards the fetus's health. Pregnant women should even avoid second hand smoke from cigarettes.