Class VIII

Movement of crustal plates result in formation of
  1. A huge island
  2. Small volcanic islands
  3. A small island
  4. Huge volcanic islands
During eruption, volcanic material is
  1. Blown to some meters
  2. Blown to many kilometers
  3. Blown to some inches
  4. Blown to some feet
Due to less amount of silica, basic lava is
  1. More viscous than acid lava
  2. More light than acid lava
  3. Less viscous than acid lava
  4. Less dense than acid lava
Greater amount of silica higher the
  1. Volatility
  2. Viscosity
  3. Density
  4. Conductivity
Divergence of plates allows magma from mantle to reach surface as
  1. Ice
  2. Rocks
  3. Lava
  4. Stones
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