Simply going to the doctors for a check up.
Answer:
Some reason of decrease in the population in the second and the third census are listed below, First World War. Recruitment of Nepalese Youth to Gurkha Army. Unscientific and unsystematic methods of counting population.
Answer:
by far, its alcohol. It's involved in more homicides than pretty much every other substance, combined.
Explanation:
No... Down Syndrome is a chromosome deficiency that happens during conception when a spem and egg fertilize. Sometimes the X and Y Chromosomes don't add up correctly and can (sadly) cause this deficiency. Water in the mother's lungs can cause pneumonia which can potentially harm the fetus due to lack of oxygen. But this cannot cause down Syndrome. Water in the baby's lungs will also not cause Down Syndrome.