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.
FLUID IN THE EAR AND ALLERGIES. The most common ear problem seen in patients with allergies is fluid in the ear or middle ear effusion. Allergic reactions have been proposed as being responsible for some cases of hearing loss and fluid in the middle portion of the ear.