Answer:
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice.
Explanation:
Pacific and north american
It isn't really a country but it is located in Egypt around 153 miles southwest of the center of Cairo.
Liquid water is not a mineral
Answer:
B. Practicing soccer for the excitement of the game
Explanation:
Intrinsic motivation is a behavior which stems from activities which gives natural satisfaction. This can be just a smile or a sense of pride. The motivation is drawn from a sort of self worth achievement.
For extrinsic motivation, a price is attached for a feat achieved. This could be winning an olympiad, essay contest etc that comes with good reward.
From the options provided only practicing soccer for the fun or excitement of it fits into the meaning of what intrinsic motivation portrays. Others are as a result of extrinsic motivation.