Answer: D) None of the above
Explanation: The subschema differs from the schema in that one denotes the appearance of data in the Database Base Management System (DBMS) while the subschema which is also referred to as the external schema is that subset of the schema is visible or relevant to the user. Thus, It is the view of the database which is visible to an application program. Virtual tables in a database usually represents an object structures like a table which is the result of running certain database commands or functions such as the create table, view, select and so on. Virtual tables are not stored directly in database files.
<span>The highest volcanic mountain in Africa is D. Mt. Kilimanjaro. This mountain is 19,341 feet above sea level which is higher than Mt. Kenya, Cameroon, and Stanley.
Kenya is 17,057 feet, Cameroon is 13,255 feet and Stanley is 16,762 feet.</span>
Air and water were too strong
Regularly spaced joints in an outcrop may indicate that an area is under intense shear stress. Hence, Option C is correct.
<h3>
What is Shear Stress?</h3>
A kind of stress that arises from a component. The components of force and material cross section are in parallel directions. A stress that changes a member's shape. This stress is great when it is parallel to neutral axis. Shear stress is denoted by τ. In Greek it is pronounced as "tau".
An image is attached for better understanding.
Therefore, Option C: under intense shear stress is correct.
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Answer:
avert,bypass,dodge,evade,escape
Explanation:
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