Minerals are identified according to their properties. One of these properties is their breaking tendency: <em>cleavage</em><em> or </em><em>fracture</em>.<em> Cleavage: Calcite, mica, muscovita, pyroxene. Fracture: Quartz, Asbestos, Limestone.</em>
<u><em>Note</em></u><em>: Since I do not know which your 10 minerals are, I will provide examples of each type according to the breaking tendency.</em>
Many properties of minerals are used to identify them, such as <em>color, density, hardness,</em> among others. In this case, we are talking about their <u>breaking tendency.</u>
<h3 /><h3>How do minerals break?</h3><h3 />
- Minerals can cleave or fracture.
- A type of mineral breaks always in the same, and this is why the breaking tendency is useful to identify them.
<h3 />
<u>- Cleavage</u>
- The mineral breaks in flat smooth planes.
- Cleavage direction and smoothness of surfaces are significant when identifying.
<u>- Fracture</u>
- The mineral break in irregular planes.
- In these minerals, there is no particular breaking direction.
<h2 /><h3>Examples</h3>
<u>- Cleavage</u>
<u>- Fracture</u>
You can learn more about fracture and cleavage at
brainly.com/question/22061284
brainly.com/question/2311110
Answer:
Phalanges: long bones
Sternum: flat bone
Vertebrae: Irregular bone
C- argon
This is because, an electrolyte is a solution that conducts electricity due to the presence of ions, and since argon is an atom and not an ion, it cannot conduct. Thus, it is a non-electrolyte
First, the unit is words per minute, not the other way round because you're interested in how fast people can type, not how much time passes for every number of words they write or read (that would be minutes per word)
now, we know they do 4200 in 60 minutes.
we need to divide 4200 by 60- first,
![\frac{4200}{60} = \frac{420}{6} = \frac{21}{3} =70](https://tex.z-dn.net/?f=%20%5Cfrac%7B4200%7D%7B60%7D%20%3D%20%5Cfrac%7B420%7D%7B6%7D%20%3D%20%5Cfrac%7B21%7D%7B3%7D%20%3D70%20%20)
so the answer is, 70 words per minute
I think you made a typo in your answer and you meant 4600 instead of 4200 - then the answer is <span>C. 76 2/3 word/min</span>