1. Which of the following is a benefit of volcanic eruptions?
A. attracts tourists C. controls landslide B.prevents flooding D. makes the soil fertile
2. Which material will form when ash deposits and mud from the eruption mixed with rain water from monsoon or typhoon?
A. Fertilizer B. acid rain C. lava flow D. mudflows
3. How can volcanic eruptions change the landscape of the Earth?
A. It forces people to transfer residence.
B. It provides agricultural benefits.
C. It turns gases into islands.
D. It creates volcanic islands.
4. Which of the following causes roofs to collapse when mixed with rainwater because of its weight?
A. ash deposit B. ash cloud C. mudflow D. lava
5. Which of the following is a good effect of a volcanic eruption?
A. It covers the land with lahar. C. It forces people to transfer residence
B. It makes the soil rich and fertile. D. It brings destruction to the environment.
6. What will develop over time when the lava builds up as a result of volcanic eruption?
A. Lakes B. Valleys C. streams D. plateaus
7. Which of the following happens when a large heap of wet or dry rock fragments slide down the slope of a volcano due to gravitational pull?
A. Lahar B. mudflow C. lava flow D. volcanic landslide
8. Which can cause air pollution as a result of volcanic eruptions?
A. emission of gases C. ash cloud
B. lahar flow D. mudflow
9. When released during a volcanic eruption which of the following will cover incoming sunlight and reduce the temperature?
A. Mudflow B. ash cloud C. lahar flow D. emission of gases
10. Why is volcanic eruption dangerous to human health?
A. It brings out lava to the environment that ca burn the skin.
B. It emits volcanic gases which is dangerous to human health.
C. It makes the soil in the area fertile which is good for planting.
D. It forces people to transfer residence very far from their homes.