Stone tools we’re first used around 3,300 BCE
1. 32 c
2. 32 f
3. 212 c
4. 212 f
5.100 f
Hope this helps
Yes, I think I have some genetic traits which is similar to my grandparents.
Explanation:
Genes are blue print of our body. The 25% gene of Grandparent is similar to their grandchildren. This gene effects the look. It may affect the color of hair and color of eyes.
Each gene is responsible for different change of our body. Genes pass from one generation to other so it is passed through grandparents to parents and reaches to us.
During the growth of crystals astronauts study and perform this action while in the space stations. The astronauts freeze a certain liquid that turns into a solid. The solid form forms a certain pattern that is “special”. The materials that group together form the actual crystal.
