Two negative culture with regards to environment conservation​

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

George’s daughter was born with a hole in her heart. he met up with a group of individuals of questionable character who agreed to deliver to george a healthy heart that could be a transplant for his daughter for a sum of $20,000. the group george negotiated with failed to deliver the heart. george tried to sue when he did not receive the heart but was surprised when the courts would not enforce the agreement.can george force performance of this contract? why or why not? (10 points)will he be able to recover the $20,000 that he gave for the heart? why or why not? (10 points)

Which one of the doll choices is a bio marker of biological again that can you determine whether or not you’re doing or worse than your chronological age