Moving air is called _______ .
Fill in the blanks: 1. ................................. is a device to measure wind speed. 2. Envelop of air surrounding the earth surface ................................. . 3. Air ................................. on heating. 4. An alternative movement of hot and cold air is called ................................. current. 5. Air moves from a region of ................................. pressure to a region of ................................. pressure. 6. A cyclone is also called ................................. . 7. A hazard causing destruction is also called a ................................. . 8. ................................. are warm moist wind blowing from the sea to the land.