dusting flour
21North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …
22agricultural technology — Introduction application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …
23Minimum efficiency reporting value — Minimum efficiency reporting value, commonly known as MERV rating is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters. The… …
24dust — dust1 [ dʌst ] noun uncount ** very small pieces of dirt that cover surfaces inside buildings like a powder: The dictionaries were covered in dust. a. very small pieces of dry earth or sand that are like powder: There were clouds of dust in the… …
