Answer: abuse, a waste of time, animal endangerment, it affects the earth
Explanation: Animal experiments prolong the suffering of humans waiting for effective cures because the results mislead experimenters and squander precious money, time, and other resources that could be spent on human-relevant research. Animal experiments are so worthless that up to half of them are never even published
Janet has been given authority to use the firm's credit card. If she was given permission, she was given authority, those two are synonymous.
Answer: to
Explanation:
To indicates direction, and it completes the sentence.
I am going
TO school now.
Answer: C.Although extracting natural gas from shale in a process called fracking is believed to be safe by industry experts, scientists beg to differ with them.
Explanation: A conclusion is the last part of something, its end or result. In a written work, the conclusion is used to introduce some final comments at the end of the piece of writing. From the given options, the claim restatement that would be most appropriate to start the conclusion paragraph, is the corresponding to option C, because it summarizes the main idea or claim of the essay, without developing more information.