Contour plowing, Pennsylvania, 1938. Contour bunding, Catalonia, 2007. Contour ploughing or contour farming or Contour bunding is the farming practice of plowing and/or planting across a slope following its elevation contour lines.
1 recurring middle ear infections.  Fluid in the ear may be accompanied by signs and symptoms of allergies or an upper respiratory infection including congestion, runny nose, post nasal drip, or watery eyes.
What causes fluid in the ear? Answer Wiki. Fluid can be in the outer ear/ear canal or middle ear/behind ear drum. Fluid in ear canal will drain out unless it is trapped behind ear wax (unlikely) or in state of active drainage from a hole in the ear drum. Fluid behind the ear drum will drain out into the throat through the Eustachian tube unless that tube is blocked by allergies or infection.