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
sentence 3
sentence 4
sentence 5

4 sentence. because she is motivated to get a better grade for the solar system test.

the president was the speaker and it was a great part of history.

explanation:

video of the national aeronautic space administration's (nasa) coverage of president john f. kennedy’s address at rice university, houston, texas, concerning the nation's efforts in space exploration. in his speech the president discusses the necessity for the united states to become an international leader in space exploration and famously states, "we choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard."