<u>Answer:</u>
The units used to measure distances between parallels and between meridians are degrees, minutes, and seconds.
<u>Explanation:</u>
- The distance between two far-away latitudes or two far-away longitudes can be broadly measured in degrees.
- In order to pinpoint any two locations lying across two different latitudes or longitudes, the distance can be tracked down to minutes and seconds.
- The distance between two closest latitudes or two closest longitudes can only be measured in minutes and seconds because they would be placed only 59 minutes and 59 seconds apart.
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.
1. Depends because earthquakes are caused by shifting of tectonic plates over one another but moving in general could be either. I would say true. 2. True.
Answer:
They´re a source of invaluable information. The study of these cosmic materials allows us to gain knowledge about the history of the solar system, about processes and primary conditions in the universe. We can learn the age and the composition of the planetary building blocks, the temperatures reached at the surface and interiors of asteroids, what kind of effect do materials experience due to impacts in the past.
Explanation:
