18 Multiple Choice 5 points Which of the following phenomena is responsible for the formation of global winds? Jet stream Convection currents Coriolis effect Greenhouse effect Multiple Choice 5 points Which weather map symbol represents a low-pressure system? H R

The formation of global winds is primarily influenced by convection currents, which occur when warm air rises and cooler air sinks, creating a continuous cycle of air movement. This process is further enhanced by the Earth's rotation, the varying temperature of land and oceans, and geographical features like mountains and valleys. Together, these elements connect to form the various wind patterns that circulate around the planet. When interpreting weather map symbols, "H" represents a high-pressure system, while "L" usually denotes a low-pressure system. If you come across a map that lacks the standard "L," it might be represented by an "H" for high pressure, while the opposite low pressure can be inferred from a lack of surrounding high-pressure symbols. Understanding these symbols is essential for accurate weather forecasting!