Q: How is population density expressed? Choices: - per arable land - number per household - arable land per capita - number per area A:
number per area

Q: An ammeter must be connected in series with what to allow it to accurately measure the current flow without causing any disruptions? Choices: - insulators - configurations - capacitors - resistors A:
resistors

Q: Q: What is the main greenhouse gas causing global warming? Choices: - nitrogen - sulfur - carbon monoxide - carbon dioxide A:
A: carbon dioxide

Question: Q: What occurs before the endometrium thickens in estrous cycles? Choices: - fertilization - pregnancy - copulation - ovulation A:
Answer: ovulation

*Question*
Q: Natural gas, such as those burned by gas stoves, is composed mostly of this? Choices: - sulfur - carbon monoxide - oxygen - methane A:
**Answer**
methane

(Q).
Q: Bacteria reproduce through what process? Choices: - binary fusion - tertiary fission - residual fission - binary fission A:
(A).
binary fission