*Question*
Q: What is our main source of aluminum ore? Choices: - coal - cobalt - tin - bauxite A:
**Answer**
bauxite

*Question*
Q: Types of radiation that cause cancer include ultraviolet (uv) radiation and what? Choices: - thermal - molecular - vibrational - radon A:
**Answer**
radon

*Question*
Q: A heterogeneous mixture of particles of one substance distributed throughout a second substance in a different phase is known as what? Choices: - disruption - solution - fluid - suspension A:
**Answer**
suspension

*Question*
Q: Why do effusive eruptions rarely kill anyone? Choices: - They are minor - They occur rarely - They are low temperature - they move slowly A:
**Answer**
they move slowly