What materials will trap heat in the greenhouse and prevent it from escaping?
3 answers
glass
https://www.google.com/search?source=hp&ei=X-EFW4PyFYvezwKDn62gDw&q=materials+will+trap+heat+in+the+greenhouse&oq=materials+will+trap+heat+in+the+greenhouse&gs_l=psy-ab.3..33i22i29i30k1l3.8541.8541.0.10826.2.1.0.0.0.0.164.164.0j1.1.0....0...1c.1.64.psy-ab..1.1.163.0...0.C0hfej-CgZE
heat, not light.
1 answer