Which scenario provides a negative feedback loop for greenhouse gases existing in the atmosphere?
A) Greenhouse gases can not exist as a negative feedback loop for climate change.
B) Greenhouse gases at moderate level in Earth's atmosphere create a cooling effect on Earth.
C) Greenhouse gases such as carbon dioxide and methane that exist at moderate levels trap heat in Earth's atmosphere.
D) Greenhouse gases at low levels create the greenhouse effect, in return create too much warmin

Like many students at university, you may be unhappy about the results you attain in exams. you may feel that even with all you are doing there must be something more -- or different-- you could be doing to get better grades. we have all at some time or other heard of that student who only studies a couple of hours for final exams and scores a's every time. we stand in awe of those who seem to breeze through without undue effort and seem to need very little in the way of studying to nail an exam. the reasons for success, in what i think are the vast majority of cases, are less esoteric than many students think: successful students consistently apply a series of productive strategies with view to attaining clearly identified learning and grade goals throughout the academic term.

Ithink the answer is c hope i

Is this english or something else