Q: The presence of what in leaf cells makes most leaves appear green? Choices: - hydrogen - sodium - carbonate - chlorophyll A:
chlorophyll

(Question)
Q: What type of gas is delivered to homes to use for cooking and heating? Choices: - fluid gas - compounded gas - nuetralized gas - natural gas A:
(Answer)
natural gas

Ques: Q: Earth goes through regular changes in its position relative to? Choices: - the moon - saturn - mars - the sun A:
Ans: the sun

(Q).
Q: Single bonds allow the atoms they join to rotate freely about the what? Choices: - nucleus - electron shell - atomic orbit - bond axis A:
(A).
bond axis

Ques:Q: Because heterotrophs cannot make their own food, what are they called? Choices: - products - destroyers - customers - consumers A:

Ans:consumers

Q: The average length of a woman's menstrual cycle is what? Choices: - 19 days - 16 days - 5 days - 28 days A:
28 days