which best explains the benefit of the panama canal? 1- the canal was a demonstration 2- the panamanian people gained their independence after building the canal 3- americans ships could move products and resources to the east rapidly 4- america never completed the project and gave panama back to colombian​

Sarah is stressed about her upcoming exam, so she goes to the gym to work out and feels less stressed afterwards. shianne is also stressed about her exam, but she decides to budget extra time to study and hires a tutor, which makes her feel less stressed. both sarah and shianne are engaged in adaptation. learning . appraisal. coping.

The pka of three different c―h bonds is given below. explain the observed trend in pka. select the single best answer.

How does sociology account for the cause of drug and alcohol addiction?