Goiter / excessive growth of thyroid gland causes by the deficiency of:

Which of the following (Climate type - District) is not correctly matched?

Initially, the minimum marriageable age of the girl child was kept under the Sharda Act.

Below are a few statements given about afforestation.
 A. Afforestation could prevent flooding.
 B. Afforestation can balance our ecosystem.
 Which of the above statements is/are correct?

Who among the following was not represented in the Paris Peace Conference 1919?

Geography is a science to study the earth as its center' who said like this?

Which one of the following substance is used in photography and also as an antichlor ? 

There is a famous virus named 'Kill and hide'.