The element ______________ is a soft, active metal and forms a compound called lye
Fill in the blank(s) with correct word
sodium
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What is the best place to stand to view a total solar eclipse?
prenumbra anywhere annular shadow umbra
Which of these objects have NOT been found in the Galactic Halo?
A) RR Lyrae variables B) planetary nebulae C) emission nebulae D) Population II stars E) globular clusters
Compared with the voltage input to a transformer, the voltage output can be
A) greater. B) less. C) greater or less.
Photosynthetic life existing on a planet farther from the Sun than the Earth would most likely be
A) smaller, less efficient at collecting solar radiation or have a faster metabolism than photosynthetic life on Earth B) identical to photosynthetic life on Earth C) larger, more efficient at collecting solar radiation or have a slower metabolism than photosynthetic life on Earth D) impossible