How often should the air filter be replaced?

Explanation: The air filter should be replaced every 15,000–30,000 km for engine efficiency.

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Q: What process occurs when two alleles are expressed equally in the phenotype of the heterozygote?
Ans: codominance

Q: Which event started the Spanish Civil War?
Ans: Franco’s rebellion

Q: In Ashtanga Hridayam, which type of Basti is indicated for Kaphaja disorders?
Ans: Nirooha Basti

Q: Who topped the Times Higher Education Young University Rankings 2024?
Ans: Mahatma Gandhi University

Q: What does a blue circle with a white “T” indicate?
Ans: Telephone nearby

Q: On October 27, 2024, L&T received an order for a nuclear fusion project in which country?
Ans: France

Q: Where was 'Kharchi Puja' organized on July 14, 2024?
Ans: Tripura

Q: According to Nyaya Darshana, how many Pramanas are accepted?
Ans: 4

Q: How did Trump’s approval rating compare to January 2025 in March 2025?
Ans: Increased

Q: In astronomy, what are so dense that not even light can escape their gravity?
Ans: red holes

Q: How should a driver check tire tread depth?
Ans: Use a tread depth gauge

Q: What kind of plants lack xylem or phloem to transport nutrients, water, and food?
Ans: nonvascular

Q: Global sources of inexpensive fossil fuels, particularly oil, are rapidly being what?
Ans: depleted

Q: Who was awarded Bhutan's highest honor 'Order of Druk Gyalpo' on March 22, 2024?
Ans: Prime Minister Modi