Answer: C) Age Explanation: Yeah, its your AGE which always goes up but sadly never comes down.

Answer: A) CaO Explanation: An ionic bond is a chemical bond between two atoms in which one atom seems to donate its electron to another atom.   Here in the given compounds, the compound that contains ionic bond is CaO, Calcium oxide.

Answer: D) All the above Explanation: The Multiples of 18 are 18, 36, 54, 72, 90, 108, 126, ....   Multiples of 18 are nothing but numbers which are divisible by 18 leaving remainder 0.   An infinite number of multiples of 18 can be achieved by adding 18 to each subsequent multiple.

Answer: D) ATP, Water Explanation: Cellular respiration is the three-step process by which cells make ATP using glucose and oxygen. Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP, waste products include carbon dioxide and water.

Answer: B) A-C Explanation: Meaning of Discordant = Harsh That implies Harsh opposite is soft.

Answer: B) Coins Explanation: Numismatics is the study or collection of currency, including coins, tokens, paper money, and related objects.

There are approximately 6 trillion miles in a light-year, so the distance we need to go is 6 trillion miles / light-year times. 4 light-years is equal to 24 trillion miles. So, this whole would take 1.2 billion hours. There are 24 hours a day and 365.25 days per year, so this time in years is 137 thousand years.

Answer: A) Amino acids Explanation: Proteins are long chains of Amino acids. That is in brief, Amino acids are the monomers of Proteins. Amino acids are compounds which contain both an amino group and a carboxylic group. Proteins are made up of 20 essential amino acids. Monomer means a small molecule of an organic substance i.e, building block in general.