A-through an optimistic viewpoint.
Answer:
Option C. Is used to cool the drill bit and to flush rock cuttings up and out of the drill hole
Explanation:
Drill mud plays a vital role in the drilling process. Its addition into the well-bore does a lot in enhancing the drilling processes and activities.
Among other importance and function of the drill mud /fluid:
1. It is used to cool off the drill bit
2. It flushes rock cuttings out of the drill hole
3. High pressure control
4. Providing buoyancy
5. Lubrication
Answer:
Literacy is popularly understood as an ability to read and write in at least one method of writing, an understanding reflected by mainstream dictionaries. In this view, illiteracy would be considered to be the inability to read and write
Explanation:
Literacy
The answer is d because our oceans are our unique features because we have permanent liquid water.