Which of the following statements is true?

The rock cycle starts with sedimentary rock and ends with igneous rock.
Sedimentary rocks usually form beneath the Earth's crust.
Sedimentary rocks usually form in visible layers.
Igneous rock is formed through heat and pressure.

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place.

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck