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.
The government takes part by passing regulations to protect the public.
Other Branches of Earth Science[edit]Geology<span>, </span>oceanography<span>, and </span>meteorology represent a large part of Earth science, while astronomy<span> represents science beyond Earth.</span>
Answer:
The power of water
Water connects every aspect of life. Access to safe water and sanitation can quickly turn problems into potential – empowering people with time for school and work, and contributing to improved health for women, children, and families around the world.
Today, 785 million people – 1 in 9 – lack access to safe water and 2 billion people – 1 in 3 – lack access to a toilet. These are the people we empower.
2 i’m pretty sure. (i need extra words in the answer to submit)