Q: What type of force exists between two touching surfaces? A:
OPTIONS:
- opposing
- centrifugal
- tension
- friction
friction

Q: Types of compounds include covalent and which other compounds? A:
OPTIONS:
- reactant
- soluble
- solvent
- ionic

Answer: ionic

Question: Q: Plant-like protists are autotrophs, meaning they make their own what? A:
OPTIONS:
- spores
- flowers
- molds
- food
Answer: food

input with options: Q: What is the term for something that limits the growth or development of an organism, population, or process? A:
OPTIONS:
- controlling factor
- stumbling block
- variable
- limiting factor
output: limiting factor

Q: Q: What is the name for the sinking of the dense, salty seawater in cold climates? A:

OPTIONS:
- cyclones
- jet stream
- tidal activity
- downwelling

A: downwelling

Q: The epidermis of the leaf consists of a single layer of which cells? A:
OPTIONS:
- endothermic cells
- insular cells
- chloroplasm
- dermal cells
dermal cells