Breathing begins with inhalation when the contraction of the diaphragm flattens on contraction, pulling the lungs down. The contraction of these muscles increases the volume of the lungs. This reduces the air pressure in the lung to below that of the external air. This pressure difference forces air to move into the lungs where gas exchange occurs. The relaxation of the diaphragm and intercostals reduces the volume of the lungs, which then increases the air pressure inside the lung to that above the external air. This forces air out of the lungs. The cycle goes on and on. Hope this helped!
The correct answer is Gettysburg
Explanation:
The battle of Gettysburg was the bloodiest of the United States Civil War. In addition to more than 8,000 deaths, the Pennsylvania hill strike is considered a turning point in the US civil conflict (1861-1865).
The episode marks the beginning of the offensive of the Union's northern troops: a decisive victory for General George Meade - and a disastrous feat for the prominent Strategic General Robert Lee, military leader of the Confederacy (South).
Answer:
In a study of Welsh pedestrians, women rated a man as more attractive if he was pictured at the wheel of an expensive rather than an inexpensive car. Men rated a woman as no more attractive if she was pictured at the wheel of an expensive rather than an inexpensive car.
Explanation:
According to the British journal of psychology, female participants of the study rated men in expensive cars as "more attractive" than men in cheaper cars. Meanwhile, men were more concerned with physical appearance rather than with the kind of car women drive when it came to rating.
It didn't represent the populations of all the states equally, all states were only allowed one vote for the majority. The government didn't have enough power. Each state had their own money. There was no army or navy. And there are many more but those are just a few
