Due today pls help me

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration