Social networking service which is also referred to as the social networking site is known as an online podium which individual uses in order to build the social networks also referred to as the social relationship with other individual who tend to share the analogous career concerns, activities, history or other connections.
Obligation is a condition of being linked in a relationship. We are all obligated to maintain the earth so it will sustain us because we all live on it
b) because it allows specialization, which increases total output
Explanation:
Specialization is when a nation or individual concentrates its productive efforts on producing a limited variety of goods. It oftentimes has to forgo producing other goods and relies on obtaining those other goods through trade.
