1) In Tamara’s science class, the students are learning about the solar system. (2) Tamara is very excited because she has always been interested in anything having to do with space. (3) However, she receives a low grade on her test on the solar system. (4) She is determined to get a better grade on the next test, so she assigns herself a demanding study schedule. (5) Tamara reads some unassigned extra books on the solar system to learn more about the subject on her own.

Which sentence shows an action that is extrinsically motivated?

sentence 2
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Read the excerpt from it's our world, too! : young people who are making a difference.the author’s purpose in this excerpt is to

The “big dig” the “big dig” (the central artery/tunnel project) has been complex and challenging. located in boston, massachusetts, this tunnel is eight lanes wide and three-and-a-half miles long. what is most amazing about this tunnel is that it is constructed under a major highway and skyscrapers located in boston’s financial district. construction crews used “clamshell excavators” during this dig. these machines carved narrow trenches, and then a special substance was pumped into the trench to keep the dirt from caving in. finally, steel beams were lowered into the trench and concrete was pumped in. one problem that engineers faced while constructing the tunnel is the fact that the soil beneath boston is extremely loose and soggy. engineers solved this dilemma by freezing the soil and pumping very cold water into pipes beneath the city. to strengthen the soil even further, a special type of glue was injected into the ground to with the consolidation of the soil. 23 which phrase best defines the word excavator as used in the passage? a. a device used to measure underground temperatures b. a device used to level uneven surfaces c. a device used to move heavy objects d. a device used to dig holes

Ikeep getting differentand provide an explanation! even if it's a minor read the sample student claim."i strongly feel that advertising should be banned during children's television shows." is this an effective claim? a. yes, because it offers an opinion that everyone believes to be true.b. yes, because it expresses an indisputable statement of fact.c. no, because it does not offer an opinion that can be argued against. d. no, because it only expresses a personal preference or feeling.