Answer: C) 80578 Explanation: 2172+1832   = 200+172+200-172   It is in the form of a+b2+a-b2=2a2+b2   = 2(40000 + 289) = 80578.

Answer: B) mitochodria Explanation: Cellular repiration takes place in the mitochodria.   There are 3 phases of cellular respiration. They are: 1. Glycolysis (Fermentation), 2. Krebs Cycle, and 3. Electron Transport.   Glycolysis takes place in the cytoplasm. The Krebs cycle and electron transport takes place in the mitochondria.

Answer: B) 15 August,1995 Explanation:

Answer: C) 21 Explanation: A prime number is a whole number greater than 1 whose only factors are 1 and itself.   Factors of 5 are 1, 5 Factors of 11 are 1, 11 Factors of 21 are 1, 3, 7, 21 Factors of 37 are 1, 37.   Hence, according to the definition of a prime number, 21 is not a prime number as it has more than two factors.

Answer: B) Humidity Explanation: The amount of water vapor ranges from a trace amount up to 4% of the mass of air. Water vapor exists as an invisible gas in the air.   The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity. The maximum amount of water vapor that can be in the air depends on the air temperature.

Answer: B) B Explanation: The Secondary Structure of a Protein is option B)   The Secondary Structure of a Protein results from Hydrogen Bonds.

Answer: D) USA Explanation: 1. US Navy commissioned world’s largest aircraft carrier, USS Gerald R Ford into the fleet. The commissioning ceremony was held at Naval Station Norfolk, Virginia in presence of US President Donald Trump. 2. USS Gerald R. Ford is the first ship in this new class of nuclear-powered aircraft carriers for the U.S. Navy. The ship is named after the 38th President of the United States Gerald Ford and has been built by Newport News Ship Building Company. The massive 1,106-foot-long carrier is powered by two new generation nuclear reactors.

Answer: B) S.S.P. Chawrasia Explanation: Chawrasia, became the first Indian to successfully defend a European Tour title and the first player to win their first four events in their home country.