2. a sample of silver contains
400,000,000,000,000 atoms. express
this number in scientific notation.
10 oferhan haco mace of

How does photosynthesis show the conservation of mass and energy?

Alexa is preparing for a presentation by creating note cards identifying keywords that describe various features of each type of plate boundary. which words apply to all three of the convergent boundaries?

Why zebra fish experience similar genetic disease as human