Catawba rhododendron bushes can reach a height of 6'-8' with a spread of 4'-6'. Displays are most effective when rhododendron bushes are massed together. These are poisonous plants -- do not allow children to ingest any of the azaleas or rhododendrons.
Best Answer: Tornadoes are caused by winds. When a tornado forms the wind pressure around the tornado drops and that's what you see on the barometer, the pressure goes down.
Yes, air has pressure. The Bernoulli's principle answers this question, of fast and slow moving air. The slower air has a higher pressure than the faster air. It's kind â¦ of like the oposite. On the wing of an airplane, the slow air under the wing has a higher pressure, so it lifts it up. The faster air on top of the wing has a lower pressure, so it doesn't have as great of a force.