Waa maxay faa'iidada ugu weyn ee gaariga shidaalka ku shaqeeya?
Wax qiiq ah kama soo baxaan, waxay soo saaraan uun uumiga biyaha iyo hawada diiran, tikniyoolajiyadda lacag-bixinta ee ugu dhaqsaha badan, Dib-u-buuxinta hydrogen-ka oo aad u dhakhso badan, Deegaanka u fiican