I can't answer your question until you give me the answer choices.
The United Kingdom, Poland, Sweden, ...
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
The answer is B. Lake Victoria. If you look at a physical map of Africa, you will get this answer. The Great Rift Valley is through the center of Djibouti. The Indian Ocean is east of INDIA, not even close to Africa. I hope this helps!
Air mass is a large body of air, whose properties - temperature, humodity
