<u>Using stone to build tools.</u>
Stone was a familiar material that was used in numerous ways.
Answer:
A reliable source is one that provides a thorough, well-reasoned theory, argument, discussion, etc. based on strong evidence.
I think option C is correct by my opinion.
Social sciences educate people on how to engage in social interactions, including how to shape public policy, build networks, improve government transparency, and advance democracy. For many people all across the world, these issues are urgent, and finding solutions to them might significantly improve people's quality of life.
Social science is crucial because it helps to articulate a fact-based foundation on which to create a more successful governmental system and social issues. Social sciences educate people on how to engage in social interactions, including how to shape public policy, build networks, improve government transparency, and advance democracy. For many people all across the world, these issues are urgent, and finding solutions to them might significantly improve people's quality of life.
To learn more about social sciences, refer
brainly.com/question/13334342
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Answer: They push against each other along a line called a front. When a warm air mass meets a cold air mass, the warm air rises since it is lighter. ... On the other hand, when a cold air mass catches up with a warm air mass, the cold air slides under the warm air and pushes it upward. As it rises, the warm air cools rapidly.
Explanation:
