During which of the following processes is carbon released into the atmosphere as carbon dioxide? OA. photosynthesis and combustion
respiration and photosynthesis
OC. respiration and combustion
OD. combustion and sedimentation
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Explain two reasons you think it is important for scientists to search for new ways to treat cancer

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field