Why are floods in urban areas particularly dangerous?
1.city buildings do not allow flood waters to recede.
2.flood waters spread pollutants and diseases more rapidly.
3.flood waters permanently damage crop soils.
4.most cities are built in flood zones.

During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms

Based on the information in the graph, what can you conclude about humans in the world in general?

Many rivers in central asia come from