Hydrogen, nitrogen, and chlorine are among the elements that occur as molecules made up of ______________ atoms
Fill in the blank(s) with correct word
two
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Volcanic eruptions may affect climate because volcanoes release sulfur compounds and small particles into the stratosphere
What will be an ideal response?
At the time of the winter solstice (the start of winter), the Sun is
a. farthest south of the celestial equator. b. farthest north of the celestial equator. c. on the celestial equator moving north. d. on the celestial equator moving south.
A source emits sound at a fixed constant frequency f.If the source moves away from you, the frequency you hear is
a. the same as f. b. higher than f. c. lower than f. d. unrelated to f.
When you float in fresh water, the buoyant force that acts on you is equal to your weight. When you float higher in the denser water of the Dead Sea, the buoyant force that acts on you is
A) greater than your weight. B) less than your weight. C) equal to your weight.