Answer:
Air Pressure. hope this helps.
Explanation:
Answer:
I Believe the answer is A
due to B being suggesting a solution, C testing for something, D he or she predicting things and
A sounds the most reasonable choice because "I am missing the ball most likely because I'm not keeping my eye on it." just matches the sentence it is a problem and could later maybe if rephrased be a question as well.
Here is yyyyyoooouuuurrrrrrrr ANSWERRRRR!!!!
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.
The melting temperature of materials is affected by the pressure they are under. So when "rock" in the Earth's mantle experiences a decrease in confining pressure, not only does it expand, it's melting temperature drops. If the melting temperature of the material drops below the background (also known as the
in-situ
) temperature, then melting will occur and in this case magma will form.
