Q: What gas comprises about three-fourths of earth's atmosphere? Choices: - hydrogen - carbon dioxide - oxygen - nitrogen A:
nitrogen

Q: What slow process is required for formation of soil? Choices: - leaching - digestion - fossilization - weathering A:
weathering

Q: Q: What determines the strength of a base when dissolved in water? Choices: - amount of phosphorus ions produced - pH level - saline content - amount of hydroxide ions produced A:
A: amount of hydroxide ions produced

Question: Q: Each gamete will have one copy of each chromosome following which process involving cell division? Choices: - osmosis - genomes - mutations - meiosis A:
Answer: meiosis

*Question*
Q: What evolved, adapted response to resource availability is the long-range seasonal movement of animals? Choices: - changing - Stagnation - regulating - migration A:
**Answer**
migration

*Question*
Q: Each atom has a required number of what? Choices: - matrix bonds - accretion bonds - acceleration bonds - covalent bonds A:
**Answer**
covalent bonds