They have in common that they have to do with natural.
How are atmospheric gases like the glass in a greenhouse
the earths surface is bound connect with the atmosphere that represents the greenhouse effect.
greenhouse effect
one pro is that it helps regulate earths temperature, but with fossil fuals which emites greenhouse gases it makes earth get hotter. and that's how you get global warming.
Convection currents.
there are some warm currents as they flow along the earths surface while there some cold currents as they travel below the earths surface
The greenhouse gases present in the earths atmosphere are both naturally produced and man made. The natural greenhouse gases (methane, water vapour, carbon dioxide) make the Earth warmer than it would be without the Greenhouse effect (this allows it to be habitable). The addition of man made greenhouse gases (methane, carbon dioxide and a few others) increases the temperature past the natural levels. SO the greenhouse effect is both natural and a result of human activities. If you consider the opposite of a "natural effect" to be a "supernatural effect" resulting from gods, devils or ghosts -the greenhouse effect is natural with no supernatural contribution.
there are some warm currents as they flow along the earths surface while there some cold currents as they travel below the earths surface
The greenhouse effect is a natural phenomenon that maintains Earth's temperature range by trapping heat in the atmosphere. This process allows some of the sun's energy to enter the Earth's atmosphere while preventing some of the heat from escaping back into space.
convection currents convection currents convection currents
convection currents convection currents convection currents
there are some warm currents as they flow along the earths surface while there some cold currents as they travel below the earths surface