Which is most clearly a topic sentence? Volcanoes may be scary, but they are the result of simple and very
natural processes. Volcanoes are holes in the Earth's crust where
substances from beneath the surface, such as hot gases and molten
rock, can escape. "You can think of a volcano as a paper cut or a
pimple on the Earth," says volcanologist Roberta Alvarez. They're
usually not a big deal on the scale of the whole planet, but they're a big
deal to us." Sometimes these eruptions can be small and ongoing,
such as the Mt. Kilauea eruption in Hawaii that has been occurring
since 1983. Other times, as was the case with Mt. St. Helens in
Oregon, the eruptions are abrupt and violent. When the lava and ash
emitted from a volcano cool and harden, they gradually form
mountains.

Which of the following words does not contain the prefix fore-? forensic forearm foreshadowing

Which three parts of these excerpts reflect the idea that war affects not only the minds of the combatants but also their physical reactions?

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)