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.
Answer: it depends really
Explanation: Gender identity is your deeply-held inner feelings of whether you're female or male, both, or neither. Your gender identity isn't seen by others. Gender identity may be the same as the sex you were assigned at birth (cisgender) or not (transgender). Some people identify as a man (or a boy) or a woman (or a girl).
The faster moving molecules in a warm object collide with the slower moving molecules in a cold object.