Answer: Option A "Choroid plexus".
Explanation:
Cerebrospinal fluid can be defined as the fluid that is found in the brain and spinal cord of human beings. It is a clear and colorless fluid.
The production of cerebrospinal fluid takes place by the specialized ependymal cells that lies in the choroid plexuses which is present in the ventricles of brain.
The amount of cerebrospinal fluid in a day is 500mL. This fluid acts as cushion that protects the brain from mechanical and immunological protection.
Hence, the correction answer is option A
I think the correct answer from the choices listed above is option C. The statement that is correct about the cave and geyser would be that the <span>cave is formed when groundwater reacts with the limestone in rocks and the geyser is formed when groundwater gets heated. Hope this answers the question.</span>
Earthquakes occur because of the pressure and density.
