Answer:
Options (A), (B), (C), and (D)
Explanation:
The volcanic activity refers to the eruption of magma at the surface of the ocean floor and continental land areas, forming volcanoes.
Some of the tectonic settings that are associated with volcanic activity are as follows-
- Mantle plumes- These are the large uprising bodies of magma that are generated due to the formation of convection current in the mantle. These are localized body and are located away from the tectonic boundaries. For example, Hawaii is formed as the plates moved over the mantle plumes.
- Continental rifts- This refers to the eruption of magma at the surface of the continents, due to the divergent motion of two continental plates. It results in the formation of a rift, rift valley and then later forms an ocean.
- Island arcs- These are formed due to the collision of two oceanic plates, where the volcanoes are formed on the lighter oceanic plate due to the rising up of magma.
- Continental arcs- These are formed due to the collision between an oceanic and a continental plate, where the volcanoes are formed due to the uprising of magma in the lighter continental plates.
Answer:
some disadvanteges the indians would have might include unreliable weapons, small militias and non permenent living areas
Explanation:
Answer:
Explanation:
The most important motive for early European exploration across the Atlantic was the dream of enormous riches. Initially, explorers and merchants hoped to find a sea route across the Atlantic to the thriving markets of Asia. But Columbus and his fellow Europeans greatly miscalculated the circumference of the earth.
Coastlines can convert back and forth among various coastal environments due to plate tectonic processes which can cause the land to rise/sink and sea level to increase/decrease: True.
- Plate tectonic is nothing but a process were both continental and oceanic plates starts drifting and converge or diverge with each other.
due to convergence of plate various landforms are formed such as Oceanic tench, fold mountains, volcanoes, etc .
- convrgence could occur between continent-continent , continent-ocean-ocean an continent-ocean plates.
due to divergence of plate boundaries multiple landforms are formed such as volcanoes , mid oceanic ridge , faulting, etc
due to folding and faulting nature, land gets rise or sink.
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