Obsidian's glassy texture indicates that it formed
a) slowly, deeply below earths surface
b) slowly, on earths surface
c) quickly, deep below earths surface
d) quickly, on earths surface

Which skill, if it cannot be performed by a 3-year-old child, should alert the nurse that the child may be developmentally delayed?

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?