Q: Where does most natural gas come from? Choices: - recycled cooking oil - oceans - alchemy - wells that produce petroleum A:
wells that produce petroleum

Q: What is an atom or group of bonded atoms that has a positive or negative charge? Choices: - an photon - an electron - a neutron - an ion A:
an ion

Q: Q: What do voltmeters measure? Choices: - current increase across a resistor - voltage increase across a resistor - current drop across a resistor - voltage drop across a resistor A:
A: voltage drop across a resistor

Question: Q: Veins are blood vessels that carry blood toward what? Choices: - extremities - lung - brain - heart A:
Answer: heart

*Question*
Q: When do homologous chromosomes form pairs? Choices: - mitosis - metathesis - transcripton - meiosis A:
**Answer**
meiosis

(Question)
Q: What is the term used for a large body of air of the same temperature and moisture conditions? Choices: - air group - sky mass - air pool - air mass A:
(Answer)
air mass