What is the primary contributor to Bihar’s agricultural economy?

Explanation: Rice is the most significant crop in Bihar’s agricultural economy. (Moderate)

Q: What is the rule for carrying a first-aid kit in vehicles?
Ans: Mandatory for all vehicles

Q: What is the name of the reusable launch vehicle tested on March 22, 2024?
Ans: Pushpak

Q: What was a reported challenge in U.S. diplomatic efforts in March 2025?
Ans: Lack of interest

Q: Who has won the Women's Junior Asia Hockey Cup 2024 title?
Ans: India

Q: When has CM Bhajanlal Sharma announced to celebrate "Pravasi Rajasthani Day"?
Ans: 10 December

Q: Which of the following is a Purvarupa of Raktapitta as per Charaka?
Ans: Amlaka

Q: The frequency of sound waves is measured in what, or the number of waves that pass a fixed point in a second?
Ans: hertz

Q: What was the tax paid by farmers to kings?
Ans: Bhaga

Q: What is the purpose of a vehicle’s fitness certificate under the MV Act?
Ans: Ensures roadworthiness

Q: Where has India's first indigenous bomber been launched on May 6, 2024?
Ans: Bengaluru

Q: What type of matter makes up most of the universe?
Ans: gas

Q: According to Charaka, which Guna of Vata is responsible for movement?
Ans: Chala

Q: Which modern vaccine prevents meningococcal disease?
Ans: MenACWY

Q: Meaning of the idiom: "Spill the beans"
Ans: Reveal a secret

Q: How often should the timing belt be replaced?
Ans: Every 60,000–100,000 km