Identify the type of synthetic material used in each object. is it alloy, ceramic, polymer?

tuba -

paper -

pot -

Tuba -  Alloy

Paper -  Polymer

Pot - Ceramics

Explanation:

Alloy : An alloy is a substance which made up of two more than two types of metal.It is uniform solid substance. For example : brass, steel etc

Ceramics: Articles , figures made up of clay which are hardened by the action of heating. For example : pots, crockery etc.

Polymer: These are the substance composed repeating units of of same chemical units which held together by covalent bonds.The single chemical unit is known as monomer. For example : plastic , rubber etc.

Tuba is an musical instrument similar made up of brass. And brass is an alloy of copper and zinc. Hence, an alloy.

Paper is majorly made up of wood pulp.And Wood pulp consists cellulose which is a polymer of glucose molecule.Hence, polymer.

Pot is made up of clay and heated to hardened them.Hence, ceramics.

object 2 because all the other ones are wrong

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.