Chemistry, 18.12.2020 20:20 alyssacruz999
Air thermals are updrafts of warm air that rise from
the ground into the sky. By flying in a spiral pattern
birds are able to ride these air currents to higher
altitudes.
What process enables birds to fly to higher altitudes without flapping their wings,
while riding these air thermals?
A. convection because warm air sinks and cool air rises.
B. convection because warm air rises and cool air sinks.
C. conduction because warm air sinks and cool air rises.
D. conduction because warm air rises and cool air sinks
Answers: 3
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Alarge marble is dropped in a graduated cylinder with 35ml of water in it.the water level increases to 49ml.what is the volume of the marble
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You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring
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Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Air thermals are updrafts of warm air that rise from
the ground into the sky. By flying in a spiral...
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