The diagram below shows part of the rock cycle. thats the pic which type of rock does b represent? igneous rock metamorphic rock rock formed by compaction rock formed by heat and pressure

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.