Answer:
<u>A) increased sophistication of tools.
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Explanation:
Technological advances have included significant developments in the production of flint tools, including fine-blade based industries instead of simpler and shorter shards. A sheath made of different materials and a stone tool for scraping and polishing made it possible to work on bones, antlers and skin. Advanced hunting spears and harpoons also appear during this period.
Nomore fat cowboys drinking
Emotional based, uses strong worded language, forwards claims that are not supported by evidence, reality shows and personal opinion sources.
Answer: c
Explanation: a goverment in which power is divided between state and national levels
Answer:
A hypothesis is generated using observations or experimental data to explain the data and to serve as a guide for further research is True.
Explanation:
In simple words a hypothesis is a proposed explanation for a phenomenon. Scientists generally develop the basis of their experiments based on previous observations that cannot be specifically explained with the available scientific theories. A working hypothesis is therefore a provisionally accepted hypothesis, which is proposed for further research, though they begin with just a thought or an educated guess.