Q: What element on the periodic table forms the most diverse compounds? Choices: - helium - oxygen - hydrogen - carbon A:
carbon
------
Q: What is the type of mining called when materials are removed along a strip? Choices: - surface mining - edge mining - pit mining - strip mining A:
strip mining
------
Q: What is the radula made mostly of? Choices: - casein - chlorophyll - schist - chitin A:
chitin
------
Q: The invention of what instrument in the 1930s allowed scientists to see viruses for the first time? Choices: - spy glass - telescopes - magnifying glass - electron microscope A:
electron microscope
------