Answer :

Shield volcanoes are the larges volcanoes in the world, named for their flat, shield-like structure. Their eruptions are highly fluid, so the lava travels quite fast. This results in steady accumulation of sheets of lava, building up the volcanoes form. Eruptions contain low viscosity magma. This means that the magma is relatively "thin", and it will flow quickly. 

Hope this helps! 

it is not a big explosive eruption ti is normally a small eruption
  fun fact
 moist of haiwy is a shield volacono

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