Earth science
21. magma tends to rise towards earth's surface primarily because
a....
Biology, 06.12.2019 23:31 zanaplen27
Earth science
21. magma tends to rise towards earth's surface primarily because
a. water is abundant in magma
b. rocks become less dense when they melt
c. silica is abundant in magma
d. rocks become more dense when they melt
23. the igneous activity in yellow stone national park is associated with what tectonic setting?
a. divergent plate boundary
b. convergent oceanic-oceanic plate boundary
c. intraplate setting
d. convergent oceanic-continental plate boundary
24. earth's rigid outer layer, consisting of the crust and uppermost mantle, is called the
25. the type of plate boundary where plates move apart, resulting in upwelling of material from the mantle to create new seafloor, is referred to as a(n) plate boundary
26. which of the following is the origin of the heat that moves earth's tectonic plates?
a. the formations of earth
b. active volcanoes
c. the sun
d. electromagnetic radiation
Answers: 3
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Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a. m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed
Answers: 2
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Answers: 3
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