Which of the following is NOT a common hazard to the biosphere from volcanic activity?
Aash covering plants and restricting photosynthesis
BRoofs collapsing under the weight of ash
CInhalation of poisonous gases
DBoiling of local streams near volcanoes
Aash covering plants and restricting photosynthesis
BRoofs collapsing under the weight of ash
CInhalation of poisonous gases
DBoiling of local streams near volcanoes