Population always increases with more agriculture
A is direct variation because the line does not curve and x and y are in a direct ratio
If one has an esophageal cancer it is important to have a good nutrition. Treatment can make it hard thus a soft diet and high protein food is recommended.A tube feeding would be ideal if anything can't be eaten through mouth. A tube called J tube can be put in one's small intestine or G tube if put in a stomach. Parenteral nutrition can also be done if there is an intravenous drip.
The atom? gas? either one of those two would work