Technically speaking, it would be "family" that represents a social group that exists in all known cultures, since families are generally crucial for the survival of the individual.
21 years old that is the answer
Male teachers made about $863 per year and female teachers made about $422 per year.
Plowing the contour of the land to have minimal soil erosion. <span>It involves plowing across hill slopes to prevent soil erosion.
Hope this helps.</span>
