Obstruction of justice in attempting to impede the investigation of the Watergate break-in, protect those responsible, and conceal the existence of other illegal activities
Answer:
because it allows for muscle growth to occur by pushing them to their maximum effort. that's why bodybuilders train until their muscles are sore, to reach hypertrophy and make it grow.
The blood going out from the arteries is full of oxgyen.It delievers that oxgyen to organs,therefore when it returns in the veins it contains carbon dioxide.
