Question: Q: The ocean is the largest marine biome. it is a continuous body of salt water that is relatively uniform in chemical composition; it is a weak solution of mineral salts and decayed what? Choices: - uranium atoms - rock shards - metal ores - biological matter A:
Answer: biological matter

Question: Q: What layer of soil usually does not have very small particles like clay? Choices: - undersoil - sediment - silt - topsoil A:
Answer: topsoil

Question: Q: The concentration of hydronium ions in a solution is known as what? Choices: - base - akaline - pH value - acidity A:
Answer:
acidity