In some places, especially some new wells that have just been drilled,
the oil is under pressure, and it brings itself to the surface as soon as
you drill a 'pipe' for it to rise through.
In most oil wells, there's a pump bobbing up and down day and night,
pumping the oil up out of the well.
When the well is so old that even a pump isn't very effective, water is
often forced down the well under pressure, and the water forces the
oil back up through the pipe.
A dependent variable is something that relies on another variable; it is what is being measured in an experiment.
90% of people weigh more than Nikoleta and 10% weigh less.
Somone sections of ocean get more rain than others, the salinity is affected when the freshwater from rain adds to the sea water and dilutes it
First one is C) A phosphate group is added, and the second is D) Kreb's cycle
