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.
Answer:
With the threat of climate change becoming more pronounced than ever, the foundation began funding research into various technologies that could aid in the fight to reduce greenhouse gas emissions.
Answer:
Social contract
Explanation:
Social contract theory says that people live together in society in accordance with an agreement that establishes moral and political rules of behavior.
Yes, lack of foreign conflict for close to 100 years until world war 1 which is a sign of its success.
D. 1800s because that's when Cuba, Puerto Rico and Mexico gained independence