Metallic or nonmetallic elements or compounds of elements that occur naturally in earth's crust are

What is a metal replacement reaction

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.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.