Only about half a billionth of the sun’s energy reaches our planet, but that is enough to sustain life. ( a) How does the sun go in and out of its “tent ”?
पहाटे मात्र, तो अचानक बाहेर पडतो; तेव्हा त्याचे तेज ‘ शय्यागृहातून बाहेर पडणाऱ्‍या वराप्रमाणे ’ असते.