the lava and pyroclastic that erupted mount. sakuajima volcano consists of medium- K series and endesite - dacite .the composition clearly differ between eruption periods.
Isobars and isotherms are both lines on weather maps that represent patterns of pressure and temperature. They show how temperature and pressure are changing over space. They describe the large-scale weather patterns across a region in the map.
Answer: A higher dependency ratio is likely to reduce productivity growth. A growth in the non-productive population will diminish productive capacity and could lead to a lower long-run trend rate of economic growth.