Answer:
Geologists use the following tests to distinguish minerals and the rocks they make: hardness, color, streak, luster, cleavage and chemical reaction. A scratch test developed by a German mineralogist Friedrich Mohs in 1822 is used to determine mineral hardness.
The two ideas shown by the Veil are:
- Discrimination influences the way people view themselves.
- A clear separation exists among people of different races.
<h3>What does the Veil mean?</h3>
According to W. E. B. Du Bois, there is a veil that separates the societies of Black people and White people such that there is a clear separation between these races.
This veil leads to discrimination against Black people who are then forced to view themselves in a certain light that paints them as inferior to the Whites.
Find out more on W. E. B. Du Bois at brainly.com/question/13833829.
A filibuster ia an attempt to "talk a bill to death" in the US senate