It is a completely false statement that the top of a sedimentary layer was deposited before the bottom. The correct option among all the options that are given in the question is the second option or option "B". The top layer is always deposited later than the bottom layer. I hope the answer helps you.
10+(30)+744
40+744
Answer: 784
Explanation:
a green and sustainable city is a community of residents, neighbours, workers, and visitors who strive together to balance ecological, economic, and social needs to ensure a clean, healthy and safe environment for all members of society and for generations to come.
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
