Answer:
Minerals precipitated from solution as water evaporates and materials formed through biological activity such as making shells or other hard parts
Hope this Helps!
Should probably look this up?
It is tilted closest to the summer solstice and farthest in the winter solstice.
1, I want to say in the mid atlantic.
2. you use the scale on the bottom left to answer so it 1cm=405km.
3. I think you pick a line on the picture and that's the age, but I'm not to sure because I don't see a key. I hope this helps.