Explanation:

Capillarity is the phenomenon of the rise or fall of a liquid surface in a small diameter tube, known as a capillary tube. The rise or fall of the liquid surface in the tube is due to the intermolecular forces between the liquid and the solid surface of the tube.

Capillarity fall is the phenomenon of the lowering of the liquid surface inside the capillary tube due to the intermolecular forces between the liquid and the solid surface of the tube. The capillarity fall is directly proportional to the diameter of the tube and the angle of contact between the liquid and the tube.

If we take the apparatus (capillary tube immersed in fluid having acute angle of contact) considerable distance inside the earth, the capillarity fall is reduced. This is because:

- The diameter of the tube is reduced due to the pressure of the surrounding earth. As the capillarity fall is directly proportional to the diameter of the tube, the fall is reduced.
- The angle of contact between the liquid and the tube is increased due to the pressure of the surrounding earth. As the capillarity fall is directly proportional to the angle of contact, the fall is reduced.

Therefore, the statement "Capillarity fall is reduced if we take the apparatus (capillary tube immersed in fluid having acute angle of contact) considerable distance inside the earth (i.e below the earth crust)" is true.

In summary, the reduction of capillarity fall in a capillary tube immersed in a fluid having an acute angle of contact is possible if the apparatus is taken considerable distance inside the earth. This is due to the reduction in diameter of the tube and the increase in the angle of contact between the liquid and the tube, resulting from the pressure of the surrounding earth.