*Question*
Q: What is the smallest volcanic landform that is formed from accumulation of many small fragments of ejected material? Choices: - concave cones - edifice cones - log cones - cinder cones A:
**Answer**
cinder cones

*Question*
Q: What is the most important element to life? Choices: - oxygen - hydrogen - nitrogen - carbon A:
**Answer**
carbon

*Question*
Q: Respiration cycles the organic carbon into which gas? Choices: - liquid dioxide - phosphorus dioxide - oxygen - carbon dioxide A:
**Answer**
carbon dioxide

*Question*
Q: Extended stays in zero gravity are not healthy for human beings. thus, for the comfort of the astronauts, the station is rotated so that the astronauts feel there is what? Choices: - revealed gravity - still gravity - Fixed Gravity - internal gravity A:
**Answer**
internal gravity