1
a description of what the weather will be like
2
the state of air, water, soil, etc., being dirty
3
for a long time
4
way of solving a problem
5
the number you get by adding two or more quantities together and dividing the total by the number of quantities that were added
6
to collect used paper, glass, plastic, etc., and treat it so that it can be used again
7
say that something will happen in the future
8
make something less or smaller in size or quantity
9
regular weather conditions of a particular place
10
short period of rain or snow
11
one of the four main periods of the year
12
connected with people
