1.The weight of air that presses down is called air . A)direction B)speed C)pressure 2. Wind moves from pressure area to pressure area. A)low, high B)high, low 3. is used in thermometer and barometer. A)mercury B)water C)nitrogen 4. Normal air pressure at sea level is mb. 5. In the absence of anemometer, we can use to measure speed of wind. A)barometer B)wind vane C)Beaufort scale