I believe the answer is: <span>bones and stones
The utilisation of metal as materials to made tools did not begin until the Neolithic period (approximately 2000 years after the Mesolithic period)
</span><span>So, bones from wild animals and stones are the only material that they know to be strong/hard enough to be made as tools.</span>
Erin and her friends, and how emotional contortions shape their sociality.
As indicated by symbolic interactionists, the central factor that decides whether change in the public arena is great or awful requires a system or setting from which to see the meaning of the change. Symbolic interactionist are sociologist that review and examine investigating individuals on how they depict and characterize themselves and their companions which impacts and has various affects on their social dealings and commitment.
B is the answer.
The temperature increases and the population of the rotational and the vibrational states changes.
