I think it may be conservation.
Thru their stomata i think
The answer for this question is B
Coefficients of Absorption for Common Materials
Perforated acoustic ceiling material 60%
Heavy curtains 50%
Carpeting 20%
Wood 5%
Plaster 3%
Clay tile 3%
Concrete 2%
The answer is C. Heavy curtains
The equator because it receives equal amounts of sunlight though-out the year.
Hope this helped!!!!
