*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 is another name for nearsightedness? Choices: - hyperopia - astigmatism - presbyopia - myopia A:
**Answer**
myopia

*Question*
Q: What organs need constant pressure to filter the blood? Choices: - lungs - dialysis - arteries - kidneys A:
**Answer**
kidneys

*Question*
Q: What are the two possible reduction products for brf3? Choices: - brg and brf - brf2 and brf4 - brf and brf4 - brf and br2 A:
**Answer**
brf and br2