What is the power p supplied to a resistor whose resistance is r when it is known that it has a voltage δv across it?

According to Ohm's law,
R=V/I
∴I=V/R.
Power supplied to resistor = VI
                                           = V×V/R = V²/R.

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

Answerigneous bedrock of the oceanic crust;