In caves, dripping groundwater containing calcium bicarbonate can form stalactites and stalagmites. When the water is exposed to
air, some of the calcium biscarbonte turns into calcium carbonate, which gets deposited on the ground. What makes this process a chemical change? A. A new substance is formed in this process, which is an important clue to chemical change
B. A change in state is observed in this process, which is an important clue to chemical change.
C. This process involves separation of dissolved substances, which is an important clue to chemical change
D. This process involves substances together, which is an important clue to chemical change.
E. This process involves breaking and reshaping of substances, which is an important clue to chemical change.
This contributes the most to human development in his community because it provides children with more resources and better opportunities than a sub-par education system. If a community is able to better their school system, they will begin to see a lot of positive changes in their area.
