Answer these three questions from watching the YT video "The Challenge of Living on Mars". Should we make a home in space?

Do the benefits of exploring Mars outweigh the risks?

Should we spend valuable resources on space exploration?

Read this sentence: devon was nervous at the thought of speaking in front of a large audience. which word could a translator use to replace the underlined word without changing the meaning of the sentence? a. angry b. excited c. d. worried

Bella is going to write a research paper. she chose sports as her topic, but her teacher said she must narrow or limit her topic. choose the topic that limits the broad topic of sports the most. a) a history of sports in the united states b) a history of tennis c) rules and etiquette of tennis d) training and equipment for outdoor sports

Iwill have sailed around the world by the end of next year. what is the verb form in the sentence? future perfect past emphatic present progressive past perfect