Question

The two ends of boats are made pointedly

(a) What is the advantage of this? 1

(b) Write the name of the method?​

Answer 1

Answer:

It help the boat to go through the water.

The name of the method is Streamlining

Answer 2

Explanation:

Ferrocement or ferro-cement[1] is a system of construction using reinforced mortar[2] or plaster (lime or cement, sand and water) applied over an "armature" of metal mesh, woven expanded-metal or metal-fibers and closely spaced thin steel rods such as rebar. The metal commonly used is iron or some type of steel, and the mesh is made with wire with a diameter between 0.5 mm and 1 mm. The cement is typically a very rich mix of cement and sand in a 3:1 ratio; and when used for building boats no gravel is used, so that the material is not concrete.