The majority of damage caused by volcanoes is from lava flows.
a. true
b. false

The correct answer is - F (False).

Even though lava flows are extremely dangerous and can not be stopped, they are still pretty slow and apart from material damage it is very rare that there's casualties because of it. On the other hand, far more devastating are the effects of the pyroclastic clouds that are extremely hot, extremely fast, and destroy everything on their way, and nothing can escape from them given that you are in their reach. Also the toxic gases and huge amounts of ash are deadlier because they can pollute the air to a level where it becomes poisonous and people and the other creatures are suffocating.