Answer: B) Damodar Valley region Explanation: This region is thus called because of its rich coal field and the iron and steel plants that have come up around them. Rhur valley is a major Industrial hub of West Germany.

Answer: C) The Boston Tea Party Explanation: Before the shots were fired at Lexington and Concord, the colonies made an attempt to settle the concerns and frustrations raised with the Intolerable Acts through debate and discussion. Thus, the First Continental Congress was called to order on September 5th, 1774. The First Continental Congress was a meeting of delegates from twelve of the Thirteen Colonies early in the American Revolution. It was called in response to the Intolerable Acts passed by the British Parliament, which the British referred to as the Coercive Acts, with which the British intended to punish Massachusetts for the Boston Tea Party.

Answer: C) Mandible Explanation: The skul contains the bones like Occipital bone, Frontal bone, Mandible, Temporal bone, Parietal bone. The mandible, or jaw bone, is the only movable bone of the skull, forming the temporomandibular joint with the temporal bone. The lower teeth are rooted into the mandible while the upper teeth are rooted in the two maxillae.

Answer: D) 300 Explanation: Number of books that can be placed in the larger box is given by Volume of Box / Volume of book.Now, n = 25 x 42 x 60 / 7 x 6 x 5 = 63000 / 210 = 300.Therefore, 300 books can be in that box.