Question

1. choose all that apply. choose two ways volcanologists help predict eruptions. they measure the movement of magma and earthquakes. they observe animal and plant ecosystems on volcanoes. they observe how a volcanos shape changes. they study the weather conditions on volcanoes.

Explanation:

Volcanologists predict eruptions by measuring magma/earthquake movement (magma movement and seismic activity are key precursors) and observing volcanic shape changes (swelling or deformation indicates magma accumulation). Animal/plant ecosystems and weather conditions are not direct predictors of eruptions.

Answer:

• They measure the movement of magma and earthquakes.
• They observe how a volcano's shape changes.