Astronomy and science question multiple choice

Need help with my Science question – I’m studying for my class.

I have some questions about Astronomy that I need to ask

example

One of the steps in the scientific method, is “Ask a question.” On average, how long does it take for scientists to completely answer that question?

A.100 years

B.10 years

C.Never

D.1 year

Which of the following is NOT a scientific observation?

A.The Sun is very hot.

B.Dr. Mastrapa is 1.83 meters tall.

C.Alpha Centauri is 4.4 light years away.

D.The mass of the Earth is 5.972 x 10^24 kg.

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