Read this excerpt from The Riddle of the Rosetta Stone. Then one day a colleague sent him a copy of an inscription that had been found in the ruins of a temple on the Nile River island of Philae. Which statement best describes the influence his colleague's act had on Jean-François Champollion? It was a breakthrough in his research. It complicated his research. It made his research worthless. It was an obstacle to his research.

Deshawn is writing an informative essay about volcanoes. he has gathered facts and written a thesis statement. read his thesis below: a volcano eruption impacts the environment in a number of ways, from covering everything in ash to destroying the landscape. based on this thesis, how should deshawn organize his essay? ? a. he should use cause/effect, writing one paragraph that explains the link between the cause of a volcano and its effects. b. he should use comparison/contrast, writing one body paragraph describing how volcanoes impact the environment and one paragraph describing how earthquakes impact the environment. c. he should use comparison/contrast, writing one body paragraph looking at the similarities between the effects of ash and the destruction of the landscape, and one paragraph explaining the differences. d. he should use cause/effect, writing one paragraph that explains how volcanoes create ash and destruction, and one paragraph explaining each of the volcano’s effects, the ash and the destruction of landscape, in detail.