What is the mixture made by hot ash, gas, and rock that races down a volcano called?

Distance that lewis and clark traveled from st. louis to ft. clatsop near the pacific ocean.

Describe how ocean currents can affect a moving object ❕❕❕

Me answer as many as you can what percentage more of water is used to provide us with electricity versus for irrigation? do we use more freshwater in our homes or to provide us with electricity?