Question

Give reasons
1- Silver is the best conductor of electricity, but copper is used for making electrical wires.
2- Mercury is used as thermometric liquid
3- Alloy of aluminium are used in making bodies of aircrafts.
4- Copper is used for making pans and bases of utensils.

Answer 1

Answer:

1-because silver is costly and if everyone started to silver in making wires then it takes no more time to be extinct.

2-because mercury is liquid in room temperature and it expands and contrast with heat.

3-because it is light in weight and it makes the weight of aeroplanes lighter.

4-because copper is a good conductor and it is restless also.

Answer 2

Answer:

it is correct

Explanation:

1. okay !