Answer: D) Kharagpur Explanation:

Answer: A) India Explanation: As per Central Electricity Authority, the Designated Authority of Government of India for Cross Border Trade of Electricity, 1st time 'India' has turned around from a net importer of electricity to Net Exporter of electricity.

Answer: B) 0.04 % Explanation: In this type cases we always have loss only.   Loss% = Common Gain or Loss102= 2102= 1/25 = 0.04 %

Answer: D) All the above Explanation: Global warming is the increase in the earth’s average temperature due to release of several greenhouse gases to the atmosphere by humans. Global warming is affecting many parts of the world.   Natural Causes include : 1. Solar Activity 2. Melting Permafrost 3. Forest Fires    Human made causes include : 1. Deforestation 2. Overpopulation 3. Landfills 4. Mining 5. Fertilizer Use

Answer: B) 30 mts Explanation: The cow can graze an area of 2826 sq.m i.e it is able to cover area of circle of 2826 sq.m   Therefore, πr2 =2826r2 =(2826×7/22) = 899.18 = 900r = 30 m.   Therefore, the radius of the circle implies the length of the rope = 30 mts.

Answer: A) Ptoteins Explanation: The genome of an organism is inscribed in DNA, or in some viruses RNA. The portion of the genome that codes for a protein or an RNA is referred to as a gene. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.

Answer: A) Chief Executive Explanation: Another name for the governor of the state is Chief Executive of the state. And we also know that, The attorney general is the head of the US Department of Justice, The vice president is just under the president of the US and The secretary of state is the head of the US Department of State.

Answer: B) 420 Explanation: Given total number of students in the class = 21   So each student will have 20 greeting cards to be send or receive (21 - 1(himself))   Therefore, the total number of greeting cards exchanged by the students = 20 x 21 = 420.