It occurs when and where there is not enough water to meet both demands and those of ecosystems to function effectively.
The tool that would be most useful to him would be a seismometer. It is an<span> instrument that measure motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions. Hope this answers the question. Have a nice day. </span>
<span>This is a composite volcano. In contrast to shield volcanoes, these tend to have a much steeper structure that is formed from those levels of lava. Shield volcanoes are much more like their name implies: a wider and flatter structure, like that of a warrior's shield.</span>
