Chromotagraphy: are blue and red ink/marker a pure substance or a mixture? why?

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

The movement of tectonic plates and in two locations is described below: location a: tectonic played push together location b: tectonic plates push apart