Abig ice shelf has broken in two. the shelf had been in one piece for 3,000 years! now, scientists are trying to find out why it split. scientists know that the air has been warmer. this made the ice thinner. scientists are studying why the air is getting warmer. they think that it could be because of the dirt that is put into the air. however, they need to know more. for now, scientists will watch the temperature. they will see if it stays warm, or if it starts to cool down again. do it! the scientists are a lonely b curious c unpleasant d proud

Determine the meaning of the word *propel* using the context clues in the sentence. wind power is the ability to capture the wind in a way to *propel* the blades of wind turbines. a) to move slowly b) to urge onward c) to stop from moving d) to drive, or cause to move, forward

Where does the receiver live in the giver?

Read the passage from sugar changed the world. sugar is a taste we all want, a taste we all crave. people throughout the planet everywhere have been willing to do anything, anything at all, to get that touch of sweetness. we even know exactly how thrilling it was to taste sugar for the first time. when the lewis and clark expedition met up with the shoshone, who had little previous contact with old world products, sacagawea gave a tiny piece of sugar to a chief. he loved it, saying it was "the best thing he had ever tasted." sugar created a hunger, a need, which swept from one corner of the world to another, bringing the most terrible misery and destruction, but then, too, the most inspiring ideas of liberty. sugar changed the world. we begin that story with a man who could never know enough. how does the conclusion of the prologue support the authors’ purpose? select two options. it introduces the topic that will be addressed next. it provides information about the authors. it states why the topic is relevant to readers. it cites sources the authors used in the text. it explains how the authors came to study the subject.