Oral rehydration salts are used to prevent and treat dehydration, especially that due to diarrhea.
A dome mountain is formed
<u>Answer:</u>
Subsistence agriculture is when the activity of growing food is not associated with economic gains and is only carried out in order to feed the cultivator himself and his family.
<u>Explanation:</u>
The word subsistence literally means support. The farming that is done by the farmers to support their survival is thus known as subsistence farming. In subsistence farming, the farmers choose to grow food that would only be enough to fulfill their own needs of survival.
There are no economic gains possible from subsistence agriculture as there is no surplus produce that can be traded to fetch economic gains.