I think the answer is <span>A significant reduction in the population of the young occurs because they are more vulnerable to infectious diseases spread by unsanitary conditions.
In my opinion, unsanitary conditions are often man-made. For example, if a person does not clean his surroundings, this would cause bacterias from infecting the place. Then it affects the person living in that area, then spreads because through oral or sexual contacts.
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Nitrogen is very crucial for life because it is one of the important ingredient that is needed for plants to grow. Human and animals who eat plants materials obtain nitrogen from the plant. Nitrogen is needed in the humans and animals bodies for formation of proteins and nucleic acid which are very essential for life. When animals and humans die the nitrogen in their bodies return to the earth again and is used by plants.
Answer: The correct answer is D. None of the above
Explanation:
Although the first three alternatives may eventually contribute, none of them is a prerequisite for a successful marriage.
Living together before the wedding is meant to get to know each other better, but there is no indication that it will make the marriage last any longer. Likewise, religious and premarital counseling can help the couple, but without any guarantee. What makes the marriage successful is the couple's complicity, love, and tolerance for the defects they both have.
