The more sunlight our planet reflects back into space, the cooler the global atmosphere tends to become. Snow and ice...

Shunhe on December 22 at 09:44PM

Hi @candace,

The correct answer choice strengthens the argument because it eliminates alternate possibilities. Since oceans and land heat the earth, we know that they can't be a reason for the lowering of the earth's temperature instead of snow or ice. Hope this helps.