As deepwater drilling for crude oil continues deeper into the earth, why is drilling mud used in place of seawater? select one: a. drilling mud is the result of the drilling process and is not used during the drilling. b. drilling mud is more dense and will settle deeper down the tunnel. c. drilling mud is easier to access than sea water at those depths. d. drilling mud provides additional pressure to keep the tunnel form collapsing.

And a) oxygen i believe

If this is a true or galse then its true but if not then what is the question?

First up write the aim
then write the materials reqd.
then the procedure which you follow
then observation
then conclusion
then you can write lab safety rules or precautions(you can avoid if u want).
lemme' give an example
aim: to observe the double displacement reaction
materials reqd: bacl2 and na2so4, test tubes and a dropper
procedure:
1. take bacl2 in a test tube and na2so4 in the other.
2. then pour bacl2 into na2so4 solution.
3. observe
observation:
you will see that a white precipitate is formed called baso4. along with that common salt or nacl is formed.
the equation is
bacl2+na2so4=baso4+2nacl
conclusion:
a double displacement reaction is observed.
hope it