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Biology, 22.06.2019 06:30
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.
Answers: 3
Biology, 22.06.2019 08:00
What advantages does a pedigree have over a written passage?
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Biology, 22.06.2019 09:00
Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f
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Biology, 22.06.2019 09:30
The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f
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Everything in the biosphere is connected true or false...
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