Answer: C) Covalent Explanation: Covalent type of bonding joins the two hydrogen atoms. Hydrogen atoms in compounds such as H2 and H2O are joined to the molecule with covalent bonds. This is where electrons are shared between the atoms in order to fill there valence shells.

Answer: C) Chalkboard Explanation: It is Blackboard or Chalkboard which is Black when clean, and as you write on it with white chalk it becomes dirty in White color.

Answer: D) 29 yrs Explanation: Let the avg age of 7 boys be 'p' yearsLet the age of the girl be 'q' yearsFrom given data,The age of 7 boys = 7p yearsNow the new average = (p + 1) when 22 yrs is replaced by qNow the age of all 7 will become = 7(p + 1) yrsHence, 7p - 22 + q = 7(p + 1) yrs7p - 22 + q = 7p + 7q = 22 + 7 = 29 Therefore, the age of girl = q = 29 years.

Answer: A) Bengaluru Explanation: Bengaluru becomes the first Indian city to get its very own logo Much like New York and Singapore, Bengaluru is set to get its own logo, becoming the first Indian city to do so.

Answer: A) 1951609 Explanation: 1397 x 1397

A Coffin.

Answer: D) All of the above Explanation: The halogens make up group 17 in the periodic table. They are five elements: Chlorine (Cl) Fluorine (F) Bromine (B) Iodine (I) Astatine (At). But astatine is not purely halogen as it is radioactive.

Answer: A) 6 days Explanation: K's 1 day's salary = 1/10 L's 1 day's salary = 1/15 Together their 1 day's salary = 1/10 + 1/15 = 3/30 + 2/30 = 5/30 = 1/6 So the money will be enough for paying them both for 6 days.