When was global warming first discovered?

sorry but your romanian isn't clear could you just translate to english

explanation:

the 4th option is the answer

well since twins have about the same dna they dont have one think in common which is the figer print. nobodys fingerprint is the same. if your using twin you would most likely get around the same results for both of them because of the genetics.. i hope this

answer; unimodal and symmetrical;