Explanation:
Olivine -
It is the primary component of the upper layer of mantle , Olivine is one of the common mineral present on the subsurface of Earth .
The structure of olivine is neosilicate . The general formula is
( Mg²⁺ , Fe²⁺ )₂SiO₄
It has an independent unit of SiO₄ , which is independent , having a tetrahedral structure .
1. The capital of the Aztec Empire was Tenochtitlan. The first choice is the correct answer.
2. In 1519, Spanish Conquistadors or conquerors, landed on the eastern coast of Mexico. The second choice is the correct answer.
3. The Spaniards brought with them muskets and horses, which were unknown in the Americas at that time. The first choice is the correct answer.
Answer: the answer is D, stones in a riverbed lying with their upstream ends slightly lower than their downstream ends.
Explanation: Imbrication ocurrs when the fragments of the rocks are puneshed by the water current.
I hope I have helped you.
Pretty sure it's gravity :)
