*Question*
Q: What organ system transports blood through the body and to and from the lungs? Choices: - metabolism - digestive - nervous - circulatory A:
**Answer**
circulatory

*Question*
Q: In what season are temperature inversions more common? Choices: - spring - autumn - summer - winter A:
**Answer**
winter

*Question*
Q: What is a galvanic process that can be prevented using cathodic protection? Choices: - explosion - sublimation - vaporization - corrosion A:
**Answer**
corrosion

*Question*
Q: What is the term for environmental causes of mutations? Choices: - pollutants - catalysts - carcinogens - mutagens A:
**Answer**
mutagens