What is one main difference between continental glaciers and valley glaciers? a. Continental glaciers are much larger and thicker. b. Each type of glacier is made of different materials. c. Valley glaciers cause more erosion. d. Continental glaciers never melt.

He contains the main idea in a paragraph. a. thesis statement b. first sentence c. declarative statement d. topic sentence

Which one event in the story almost caused them to turn back and give up? losing their donkeysthe descent into the volcanorunning into their first dead endlack of water

The reversalists continue their labors, confident that they will one day construct an engine that generates more compression than it uses, a perpetual power source that will restore to the universe its lost vigor. which theme is best supported by the excerpt? a. scientific study requires dedication and perseverance. b. people will always look for a way to achieve immortality. c. death must always be endured alone. d. change is difficult to accept but beneficial if embraced.