Help pleaseee, i really dont understand this

Which of the following is one of the innovations that neolithic farmers become more productive? a) plow b) windmill c) tractor d) reaper

Is it enough to be "suspected" of terrorism, or should these suspects have the right to a fair trial before being detained indefinitely? your response should be at least five sentences. use complete sentences and offer evidence to back up your opinion

Using the president's schedule, identify one example of the president using constitutional powers and fulfilling his duties. then, explain how and why that power is limited. give your answer in the form of at least three complete sentences.