Volcanoes are formed when magma from within the Earth's upper mantle works its way to the surface. At the surface, it erupts to form lava flows and ash deposits. Over time as the volcano continues to erupt, it will get bigger and bigger.
Answer:
A. Provided them with much of their food
Answer:
Floods have significant consequences for the environment
For many species, floods trigger breeding events, migration, and dispersal. ... Other negative effects include loss of habitat, dispersal of weed species, the release of pollutants, lower fish production, loss of wetlands function, and loss of recreational areas.
Explanation:
One reason why People in South America moved from rural areas to the city is to get more employment opportunities
