Smog and other forms of pollution from urban cities can create more carbon dioxide as well as global warming and, in turn, affect rural areas that rely on energy resources for their crops and farmland. also increases the concentration of carbon dioxide which scientists believe is increase atmospheric temperatures worldwide. a) plants b) deforestation c) crop rotation d) acid precipitation

the most speciallized is b. grizzly bear

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'