Q: What type of rock contains concentrations of valuable minerals? Choices: - sedimentary - igneous - metamorphic - ores A:
ores

Q: Steam consists of what common and essential element in its gaseous phase? Choices: - carbon dioxide - air - plasma - water A:
water

Q: Q: Deep within the earth what force is so great that a rock behaves like a stretched rubber band? Choices: - momentum - magnetism - volcanoes - pressure A:
A: pressure

Question: Q: Technically, any redox reaction can be set up to make a what? Choices: - Black Cell - blocky cell - skaht cell - voltaic cell A:
Answer: voltaic cell

*Question*
Q: Abrasion is a process of what type of weathering? Choices: - geological - molecular - environmental - mechanical A:
**Answer**
mechanical

(Question)
Q: An estimated 99 percent of the species that have ever lived on earth no longer exist, showing that what event is common? Choices: - accumulation - over fishing - pollution - extinction A:
(Answer)
extinction