Q: What combines with rain to form acid rain? Choices: - suction and sulfur oxides - compost and sulfur oxides - carbon dioxide and sulfur oxides - nitrogen and sulfur oxides A:
nitrogen and sulfur oxides

Q: Mixtures of materials called alloys contain at least one of what type of material? Choices: - coal - liquid - steel - metal A:
metal

Q: Q: What has atoms with unstable nuclei? Choices: - hydrocarbon - microwaves - radionuclide - radioisotope A:
A: radioisotope

Question: Q: What type of state do most fungi spend their lives in? Choices: - triploid - meiosis - diploid - haploid A:
Answer: haploid

*Question*
Q: What are the two factors that affect the pressure of fluids? Choices: - viscosity and gravity - momentum and density - depth and decrease - depth and density A:
**Answer**
depth and density

Q: Q: What are the three main types of rocks? Choices: - limestone , igneous and metamorphic - plutonic, igneous and metmorphic - crystalline , igneous and metamorphic - sedimentary, igneous and metamorphic A:
A: sedimentary, igneous and metamorphic