The is the plastic-like, upper part of earth’s mantle.
a. outer core
b. lithosphere
c. oceanic crust
d. asthenosphere

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

What is the most stable monatomic ion formed from nitrogen

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead