Answer:
The type of chemical reaction in
H2CO3 → H2O+ CO2 is decomposition reaction
Decomposition reaction is a reaction which involve the breakdown of a single compound into two or more elements or compounds. The reaction above is a decomposition reaction because H2CO3 decomposes to yield CO2 and H2O
Explanation:
The answer not in scientific notation is 65280000
The cities, especially the largest ones have almost always been located along the banks of a river, usually a larger one. ... In the past, a major reason was the fertile soil, as the larger population needed more food, and the fertile deposits by the rivers enable high scale production of food. ( cite: google )
I want to say environment but Im not sure. I hope this was helpful though.
