Briefly explain the origin of drumlins What will be an ideal response?
Drumlins form beneath moving ice that molded glacial drift into a characteristic streamlined shape
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Devices that convert solar energy directly into electrical energy are called ____.
A. solar thermal systems B. passive solar systems C. active solar heating systems D. photovoltaic cells E. concentrated solar plants
Visible light is electromagnetic energy
a. True b. False Indicate whether the statement is true or false
Based upon what we are learning about invasive lionfish populations in the Caribbean and along the Atlantic coast of the United States, these lionfish populations __________.
a. can be controlled by introducing a new lionfish predator from the region where lionfish naturally occur b. can be eliminated by holding regular lionfish derbies encouraging people to catch as many lionfish as possible c. cannot be eliminated by any means currently known d. can be eliminated by setting traps widely in these regions
Compared to the mass of an electron, the mass of a proton is
A. very much less. B. identical. C. very much greater. D. greater.