phrase is necessary to the meaning of a sentence

Your school has recently decided to start serving genetically modified food as part of school lunches. give a multimedia presentation to the student council arguing for or against the new policy. include engaging visual elements and strong evidence that support your position.

Which is the main claim in "say no to library cuts"? a. the most important effects of the library cuts will not be limited to children, senior citizens, or other specific groups. b. the budget cuts at the library also mean the end of the children's story hour. c. according to library director sarah tomlinson, whom i interviewed on may 6, the budget cuts will force the library to discontinue many popular programs and services. d. the funding of the public library should be protected because the library offers important programs and services that benefit the whole community.

What are two themes in ted chiang’s “exhalation”?