Answer:
When the lower esophageal sphincter is atrophied, a disease called achalasia occurs, in which there is no relaxation of the esophagus when the food is swallowed, it is difficult for the food to go down to the stomach. Some symptoms are that the food, once swallowed, can not pass and gets stuck.
Regurgitation, chest pain and weight reduction may also occur.
Plant and cell sjahhshejajajshs
The pollutants from humans placed on the surface of the earth impact groundwater, They can percolate vertically downward through soil, eventually reaching groundwater.
<h3>How does groundwater pollution happen? </h3>
Groundwater located near irregular landfills can be contaminated with fluids. When infiltrating the soil, these fluids reach the groundwater, contaminating them with bacteria.
in this case, is possible to say that They can percolate vertically downward through soil, eventually reaching groundwater.
See more about groundwater at brainly.com/question/10005777
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Answer:
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