Q: Q: What is a soft, malleable, and corrosion resistant material called? Choices: - tin - copper - gold - lead A:
A: lead

Q: Q: Both energy and heat can be expressed in units of what? Choices: - amperes - velocities - ohms - joules A:
A: joules

Q: Q: A comet striking the earth may have caused mass extinction, this would have decreased sunlight, which would have effected what plant process reducing food? Choices: - fertilization - decomposition - glycolysis - photosynthesis A:
A: photosynthesis

Q: Q: What are natural resources which can be replaced in a relatively short period called? Choices: - solvent resources - materials resources - replaceable resources - renewable resources A:
A: renewable resources