Question

which of the following would be an opinion based on the article fresh air?
○ the ethylene scrubber has been around for many years.
○ nasa is planning a journey to mars in the future.
○ the partnership between marshall space flight center and the university of wisconsin madison was the beginning of airocide.
○ commercializing a product designed for space should help nasa get good publicity.
○ the international space station can now grow its own food thanks to the ethylene scrubber.

Explanation:

To determine an opinion, we identify statements that involve judgment or belief rather than factual statements. The first four options (except the fourth) are factual claims (about existence, plans, partnerships, or capabilities). The statement "Commercializing a product designed for space should help NASA get good publicity" includes the word "should" and expresses a belief about the outcome of commercialization, which is an opinion. The other options are statements of fact that can be verified.

Answer:

D. Commercializing a product designed for space should help NASA get good publicity.