A major greenhouse gas is CO2 and nearly all CO2 gasses come from fossil fuels, except for methane gas and nitrous oxide which comes from waste and are GHGs (which shouldn't be discounted).
Ist d hope
That helps hope you have a great one
It allows scientists to avoid the effects of light pollution
1) She developed a hypothesis 2) She put one plant near the window... 3) Every few days 4) Over six weeks