Final answer:
The type of volcano that is low, broad, and made mostly of liquid lava flows is the shield volcano. Its shape is due to the low viscosity of the erupted lava, which allows it to travel far before cooling and solidifying. This is different from stratovolcanoes and cinder cones which are more steep and often have more explosive eruptions.
Step-by-step explanation:
In the context of our question, which is asking about a type of volcano that is low, broad, and composed mostly of liquid lava flows rather than explosive eruptions, the correct answer would be 1) shield volcano. A shield volcano is characterized by its broad, flat shape caused by the flow of low viscosity lava, which can travel a long distance before cooling and solidifying. This contrasts with other types of volcanoes such as stratovolcanoes and cinder cones, which are typically more explosive and result in a more conical shape due to the higher viscosity of the erupted materials. Examples of shield volcanoes include the Hawaiian Islands, particularly Mauna Loa.
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