"The development of a child begins from the head then towards the feet." The said statement is related to which principle of development?

In the following, which is not a characteristic of good mental health?

In the two-factor principle of Spearman, the third factor is -

In an Intelligence test, a 10 year old child was found to have mental age of 12 years. His I.Q. is -

The process of getting an object of thought clearly before the mind is - 

Interest is -

Select the most appropriate group with reference to adoloscent out of the following-

Who has become the first such Gram Panchayat in the state where underground lines of electric cables have been laid?