B. the crystals have abundant room to grow in their hollow surroundings
Explanation:
Minerals in geodes form spectacular euhedral crystals because the crystals have abundant room to grow in their hollow surroundings.
Euhedral crystals are crystals that have well formed and defined faces. The opposite term for euhedral is anhedral. Anhedral crystals lacks crystal faces.
When a crystal have abundant room to grow in their hollow surroundings, they grow and develop well without any alteration of their faces.
Crystal faces are destroyed when crystals don't have spaces to grow and they touch each other.
Learn more:
Platinum crystals brainly.com/question/5048216
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I do not know if this is the correct answer,
Ionic Bonds - Whichever two atoms give one electron to the other
Covalent Bond - Is whenever two atoms share electrons and they go back and forth between the two
I do not know what the third type is you would have to comment and let me know and I will try to find it for you! :)
The answer would be D, all the above
