this artist's illustration shows
earth shortly after the moon
formed. earth was hot and vol-
canic, and contained no liquid
water. the moon was much
closer to earth than it is today.
over time, earth's surface began
to cool, forming solid land.
could life have existed on
earth
at the time shown in the illus-
tration? why, or why not?

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

The organs inside the body and how they function together