Hello there!
I'd say A) Crop rotation has nothing to do with soil mismanagement. It's not particularly effecting the soil in a bad way. Hope this helps.
I think bacteria formed around 3 billion years ago (if I'm wrong let me know)
False, Water is not a ionic compound.
Answer:
Explanation:
The first one got messed up but its 130
Answer:
The female cones' location is important because male cones drop their pollen from the top of the tree.
Explanation: