Which of the following light sources is the most efficient?
A) incandescent
B) LED
C) candle
D) sodium vapor
Correct Answer:
Verified
Q3: Repeatability in an experiment is important because
A)it
Q4: The scientific method is
A)reliable.
B)impartial.
C)limited in when it
Q5: Scientists distinguish between situations that are merely
Q6: What is the fundamental subunit of matter?
A)molecule
B)compound
C)mixture
D)atom
Q7: Some of the steps followed in the
Q9: "Matter" is made up of
A)atoms.
B)proteins.
C)bases.
D)pseudo electrons.
Q10: The energy released as water flows downhill
Q11: Which of the following small molecules are
Q12: Scientists usually experiment by collecting data
A)from as
Q13: Communication is a central characteristic of the
A)scientific
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