A Secret.

Answer: C) Natural Gas Explanation: Natural Gas is a Non Renewable Resource of Energy because that does not renew itself once used, unlike the other choices.  It is a resource that will not be naturally replenished.

Answer: D) Bacteria Explanation: The process by which bacteria convert nitrogen gas (N2) into ammonia (NH3) is called Nitrogen Fixation.   The conversion of nitrogen from one form to another in the nitrogen cycle is carried out primarily by Nitrogen Fixing Bacteria such as Azotobacter.

Answer: B) Maharashtra Explanation:

Answer: B) Methyl acetylene Explanation: The IUPAC name of the compound is Methyl Acetylene or Propyne.

Answer: A) 20 Explanation: Let the total amount be 200 {L.C.M of 40 and 50} Chacobar C.P. = 200/50 = 4 Fivestar C.P = 200/40 = 5 Remaining Money after petrol = [200 - 200×10%] = 180 Remaining money after buying fivestars = [180 - 20×5] = 80 So number of Chacobar she can buy = 80/4 = 20

Answer: D) 0.375 & 0.1 Explanation: 3/8 as a Decimal : In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple. Now to make 8 into 1000, we multiply numerator and denominator with 125 => 3 x 1258 x 125 = 3751000 = 0.375   1/10 as a Decimal : 1 divided into 10 parts of each 0.1.   Therefore, 3/8 = 0.375 and 1/10 = 0.1 in decimals.

Answer: B) 12.5% Explanation: Here to convert 0.125 into % First convert to fractio Multiply and divide by 1000 => 0.125 x 10001000 = 1251000 = 18 => Now, in percentage18 x 100 = 12.5%