Answer:
Quartz is not pure in this rock.
Explanation:
When quartz shows effervescence in contact with an acid, it means that it is not in its pure state, but rather related to other substances that may be cementing the quartz. This effectiveness is caused by substances that do not react like quartz, such as calcite.
In this case, we can conclude that in relation to the calcium-rich rock shown in the question above, the calcium is not pure, but it is likely to be related to calcite, or other material that does not react to acid.
Answer:
It can be found northeast of africa, and contains the Yangtze river inside of it.
Answer: wind energy spins the blades than the blade spin the genrator
making energy. The solar energy uses solar penels wich make energy wich can be stored.
Explanation:
This answer may be wrong or cheated.