1why do volcanoes erupt
2how do volcanoes erupt

What impact did improvements in farming technology near the end of the nineteenth century have on the american economy? a. more energy was needed to power equipment, creating the renewable energy industry. b. less labor was necessary on farms, leading workers to pursue other jobs. c. less money was invested in farming as many locally owned farms went bankrupt. d. more demand for agricultural products reduced the price of food and animal products.

One of the results of the 2010 golf of mexico oil spill is the threat to various species in the goths ecosystem it disturbed and in some cases forever altered the of the gulf coast

What challenges did nigeria faced after it gained its independence from britain