<em>global warming is caused by different gases ,, hence they are affecting the environment by increasing temperature ,, only science can solve such a big problem because during global warming all the reactions that take place are scientific..</em>
Certified answer cred due to :
brainly.com/profile/HistoryGuy-343799One way in which classification is used at school is the separation of different subjects and subject materials. For instance one day you may go to a math class, while another day you may go to a french class.
Answer:
The part of the DNA molecule that varies among DNA molecules is nitrogenous bases.
Its a <span>polypeptide chain</span>
