Where should the fulcrum be located in this lever to get the greatest mechanical advantage? A. At position II, because the effort arm and the load arm should have equal lengths.
B. At position IV, because the effort should be applied as close to the fulcrum as possible
C. At position I, because the length of the effort arm should be greater than the length of the load arm.
D. At position III, because the length of the load arm should be greater than the length of the effort arm.

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