The eruptions refresh and produce water, land, and air.
by the measurement's
Volcanoes change the earth's atmosphere by giving out tons of smoke, heat, and ashes, helping to make global warming bigger, and making bad air.
Well it all depends on the size of the volcano. For example there was a volcano so big that when it erupted it released tons of dust that it almost covered the whole entire world. The dust particles...
Barometric pressure,humidity,and temperature.