Elephant seals can hold their breath for over an hour while hunting for food underwater. A researcher wanted to test the hypothesis that seals could spend so much time underwater because they were less sensitive to changes in CO2. Which experiment would be a good way to test the hypothesis

answer; i believe its (ovulation);

i think the answer would d

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.