If a hole is created in the chest wall, air could escape or be drawn in, or if bleeding develops within the chest, air and blood can accumulate in the pleural space. This would force the lung to:

It'd force the lungs to collapse.

Explanation:

The pleural space is the space between the lung and the pleura of the two lungs that is covered with a thin membrane and filled with fluid.

If air and blood accumulates within the pleural space, this would cause the lungs to collapse because of the pressure.

I hope this answer helps.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

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