Which kind of mathematical calculations are most useful in determining the components of a vector in two perpendicular directions when only the angle of the resultant vector is known?
O A. fraction and percent
OB. sine and cosine
c. range and average
OD. addition and subtraction

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods