Answer
C) Viruses need a host to survive
Eruptions at shield volcanoes are only explosive if water somehow gets into the vent , otherwise they are characterized by low-explosivity fountaining that forms cinder cones and spatter cones at the vent, however, 90% of the volcano is lava rather than pyroclastic material.
Passive because the water flow gets weaker mark brainliest please and have a good day