Question

Select all of the answers that apply. Which of the following are warning signs of a volcanic eruption? The temperature of the water over a volcano has risen significantly. The ground surface has sunk. Geysers rise less often. There's an increase in seismic activity near a volcano. Smoke plumes are rising out of the crater.

Answer 1

-The temperature of the water over a volcano has risen significantly.
-There's an increase in seismic activity near a volcano.
-Smoke plumes are rising out of the crater.

Answer 2

The following options apply;
1. The temperature of the water over a volcano has risen significantly.
2. There is an increased in seismic activity near a volcano.
3. Smoke plumes are rising out of the crater.
Warning signs of volcanic eruptions are those signs that one will usually notice when a volcanic eruption is about to occur. The other sings that could be noted include; small earthquake beneath the volcano, swelling of the volcano, increased emission of heat and gas, etc.