Answer:
Explanation:
1. Select the correct answers from the list.
Scientists wondered how volcanoes could be located so far from tectonic plate boundaries until one proposed the idea of hotspot magmatism, where the magma is much hotter than the surrounding magma. These are mantle plumes and do not move with tectonic plates. They are responsible for the creation of volcanic island chains such as Hawaii.
Hotspot magmatism occurs far away from lithospheric plates. They result from rising mantle plumes which does not move with the plate thereby when they reach the surface, they cool and solidify to form series of volcanic island chains.
2. a rising magma
All volcanoes have rising magma. In fact, volcanoes are surface features formed by magma that reaches the earth surface.
3. d They were warm climate plants that would not grow in a cold polar area.
These fossil types might have spread when the continental masses were joined together. As oceans came up, continents drifted to their present position due to plate tectonics.
4. Type of lava, steepness, height
when we talk about volcanoes, earth scientists are interested in a couple of factors such as lava types, steepness, height of volcano, viscosity, explosivity and the likes.
5. c The plates push up, forming a mountain range.***
At collision margin between two continental plates having similar rock densities, a push up will occur. This woud lead to the formation of mountain ranges around due to the collision.
