Question

2.1 Fill in the blanks using appropriate words.
i) An object is made of Olesta insubstance.
ii) Scientists have discovered 118 elements of thes
nature.
(iii) Fluoride is used in toothpaste to prevent
tootha
(iv) Soap is a salt of
and sodium hydroxide.
(v) coppex is a very good conductor of electricity.
(vi)Co Dil is said to be a fossil fuel.​

Answer 1

Answer:

2.1 Fill in the blanks using appropriate words.

i) An object is made of Olesta insubstance.

ii) Scientists have discovered 118 elements of thes

nature.

(iii) Fluoride is used in toothpaste to prevent

tootha

(iv) Soap is a salt of

and sodium hydroxide.

(v) coppex is a very good conductor of electricity.

(vi)Co Dil is said to be a fossil fuel.