The answer should be B.
The greenhouse effect is when the sun gives us the heat and since global warming is putting too much carbon dioxide into our atmosphere the heat won't be able to leave the atmosphere. Or at least most of it wont be able to leave.
Have a nice day!!!
If you are happy and excited, you may see the world more bright and “full of color” but for someone who may be sad or depressed, everything might seem drained of color or boring and they might only see the bad in the world
It’s either snow or rain if it’s a riddle sort of.