The angle of prism is 41.81 degrees.
<u>Explanation:</u>
For no emergence to be taken place, inside a prism, Total Internal Reflection (TIR) should take place at the second surface. For TIR, at second surface, angle of refraction must be greater than critical angle. Angle of prism is related to refraction as,

Since,
= C and 
This implies 



when sin goes to other side become as sin inverse of value, and obtain the result as below,

i added an image. i hope it helped :)
<em>The term that describes a gap in the geologic record that occurs when sedimentary rocks cover an eroded surface is called</em> <em>unconformity.</em>
<em>Glad to help ya!! ;)</em>
Answer:
C. software
Explanation:
software, is a collection of data or computer instructions that tell the computer how to work. This is in contrast to physical hardware, from which the system is built and actually performs the work.
1. True
2. True
3. True
4. True
5. False
6. False
7. True