Which of the following is a technological application of sound? a. a microwave that quickly heats up food b. a digital camera that records color and intensity of light in a pattern c. a high definition receiver that provides a very sharp television picture d. a sonogram machine that examines babies before birth

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation