Identify the incorrect statement regarding a plant greenhouse.

Explanation

Option A is incorrect because a greenhouse made of glass allows visible sunlight (short wavelength radiation like ultraviolet rays) to enter, warming the soil and plants inside. Option B is correct since the glass partly absorbs and reflects the longer wavelength infrared radiation emitted from inside. Option C accurately describes how increased CO2 in the atmosphere acts like greenhouse glass, trapping heat and warming Earth. Option D is false because a greenhouse is warmer, not colder, than the outside environment.