Which type of rock is formed by magma erupting from a volcano? sedimentary igneous metamorphic pyrolite taconite

I’m a process called plucking, the rocks dragged by glaciers produce grooves and scratches in bedrock.

Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. wavelength c. brightness d. intensity

The caste system in india was used for what purpose? a) to ensure that all people had an adequate income b) to prevent the rich from taking too much power c) to provide social control and conformity according to one’s birth d) to draft a military capable of defending india from mongol invasion