I just took a test with this question and got the answer wrong for saying ethane. The correct answer is propane.
Answer:
the first option, tasting a pasta sauce after adding a new ingredient.
Explanation:
tasting a pasta sauce after adding a new ingredient is not an observation because there is no qualitative or quantitative data to be taken from that experience.
Answer:
option C. it contain 6 neutrons.
Explanation:
Water goes into the sky by condensation I think
