It removed the Tsar from power
Answer:Examples of valuable nonmetallic minerals extracted by mining are sand, gravel, phosphate
Explanation:
Nonmetallic minerals refers to those chemical elements that cannot be used to make any other products after they have been melted. Examples of these minerals are clay, limestone,marble , sand and gravel. They are called non metallic because they can not conduct electricity , can not conduct thermal power, they lack luster,rigor and malleability.
The non metallic metals are mostly used to make cements , lime and glass.
They can also be used in sanitary ,tableware and decorative products.
Several steps are followed in making certain products from these minerals such as grinding,cutting,mixing,shaping and heating.
<span>The observations of the student is that few women in his university are pursue engineering and based on these observations the sociological question is whether there are any barriers in the educational system that would prevent from studying the engineering and these days women are considered to be successful in any field they intend to enter.</span>
I believe the answer you're looking for is D.