Question

(i) why iodine is important for us? (ii) Name a non-metal which is a good conductor of heat and electricity.

Answer 1

1)As it is important bcz our body needs iodine to produce thyroid hormones which is important for our body and needed in a sufficient amount,If there is a lack of iodine in our body then some dangerous diseases like goitre can cause so it is important for us.
2)Graphite