1. what is volcanic glass?\nrocks formed from sediment\nrocks formed by pressure\nrocks that cooled so…

1. what is volcanic glass?\nrocks formed from sediment\nrocks formed by pressure\nrocks that cooled so quickly they have few or no mineral grains\nrocks with large crystals\n2. where do igneous rocks frequently form?\nin deep ocean trenches\nin deserts\non mountain peaks only\nat plate boundaries

1. what is volcanic glass?\nrocks formed from sediment\nrocks formed by pressure\nrocks that cooled so quickly they have few or no mineral grains\nrocks with large crystals\n2. where do igneous rocks frequently form?\nin deep ocean trenches\nin deserts\non mountain peaks only\nat plate boundaries

Answer

Answer:

  1. Rocks that cooled so quickly they have few or no mineral grains
  2. At plate boundaries

Brief Explanations:

  1. Volcanic glass forms when lava cools rapidly, preventing mineral - grain formation.
  2. Igneous rocks form from magma/lava, and plate boundaries are areas with high - magma activity.