1
a person who carries out academic or scientific research
2
the action or fact of leaving one's job and ceasing to work
3
a person or animal that lives in or occupies a place.
4
a person who relies on another, especially a family member, for financial support
5
distinguish or separate one from another.
6
in the direction that one is facing or traveling; toward the front.
7
a state or situation in which something needed cannot be obtained in sufficient amounts.
8
is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).
9
in all parts; taken as a whole.
10
waste material; refuse or litter.
11
a danger or risk.
12
find out how heavy (someone or something) is, typically using scales
13
use or expend carelessly, extravagantly, or to no purpose
14
(of a smooth surface) reflecting light, typically because very clean or polished
15
hard solid nonmetallic mineral matter of which rock is made, especially as a building material
