Answer: C) Both A & B Explanation: Covalent bonds hold atoms together because the attraction between the positively charged nuclei and the negatively charged shared electrons is greater than the repulsions between the nuclei themselves.

Answer: A) Karnataka Explanation: Karnataka CM Siddaramaiah has inaugurated the upgraded version of police helpline Namma 100, where police officials will be deputed within 15 minutes to the spot of emergency, for Bengaluru. Based on the model adapted in London, which has helpline 999, and USA, where 911 helpline operates, Namma 100 helpline allows the public to access several facilities on a single number.