The part of a shadow where only a fraction of the Sun is blocked is called
What will be an ideal response?
the penumbra
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What element is oxidized in the following equation and what element is reduced?
SN2 + 2 Ag ? Sn + 2 Ag? A) The tin ion, SN2 , is oxidized, while the silver, Ag, is reduced. B) The tin ion, SN2 , is reduced, while the silver, Ag, is oxidized. C) Both the tin ion, SN2 , and the silver, Ag, are reduced. D) Both the tin ion, SN2 , and the silver, Ag, are oxidized.
We describe a location on Earth's surface by stating its
A) altitude and direction (or azimuth). B) meridian and longitude. C) latitude and direction. D) latitude and longitude.
Observed mall fluctuations in the temperature of the cosmic microwave background are predicted by dark energy models
Indicate whether the statement is true or false
Coffee is served at a restaurant before you are ready to drink it. To be hottest when you are ready to drink it, you should add cream
A) right away. B) at any time. C) when you are ready to drink the coffee.