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Why does cellophane shrink when heated?

Cellophane shrinks when heated because it is made of regenerated cellulose that has been stretched and oriented during manufacturing. When exposed to heat, the molecular structure of cellophane relaxes and the material contracts, causing it to shrink in size.


What would someone use Isosorbide for?

Someone would use Isosorbide to control chest pain and angina. It relaxes the blood vessels to the heart and thus increases the supply of both blood and oxygen to the heart.


Does nitric oxide effect erections?

Yes, nitric oxide plays a crucial role in the physiological process of achieving an erection. When a man is sexually stimulated, nitric oxide is released in the erectile tissue of the penis, which activates an enzyme that produces cyclic guanosine monophosphate (cGMP). This cGMP relaxes the smooth muscles in the penile arteries, allowing for increased blood flow and resulting in an erection. Therefore, nitric oxide is essential for the vasodilation necessary for erectile function.


How is urine pushed from the body?

Urine is released from the urinary bladder, through the urethra to be expelled from the body. The process is under voluntary control, and involves coordination between the central, autonomic, and somatic nervous systems.


Which color is more user friendly a blackboard or greenboard?

Studies reveal that green color relaxes the eyes and prevents fatigue. Furthermore, the human eye is highly sensitive to the green color, and for this reason, the use of green boards has extensively increased.