A student investigates the greenhouse effect of three different gases (A\text{A}A, B\text{B}B, and C\text{C}C) by measuring the temperature rise of the gas inside a sealed flask when exposed to an infrared lamp for 151515 minutes.
The student's results are shown in the table below:
| Gas in flask | Temperature change (∘C^\circ\text{C}∘C) |
|---|---|
| Air (control)\text{Air (control)}Air (control) | +1.5+1.5+1.5 |
| Gas A\text{Gas A}Gas A | +4.2+4.2+4.2 |
| Gas B\text{Gas B}Gas B | +8.7+8.7+8.7 |
| Gas C\text{Gas C}Gas C | +12.1+12.1+12.1 |
Explain why the temperature increases more in the flasks containing Gas A\text{Gas A}Gas A, Gas B\text{Gas B}Gas B, and Gas C\text{Gas C}Gas C compared to the air control, with reference to the greenhouse effect.
Describe a valid experimental method to find the relative greenhouse warming effect of an unknown gas, Y\text{Y}Y, in this ranking. State two variables that must be kept constant.
Describe the main components of a fully labelled diagram illustrating the greenhouse effect on Earth. Include the relative wavelengths of incoming and outgoing radiation, and how greenhouse gases interact with this radiation.