Which of these is a source of heat energy?

Explanation: Fire produces heat energy through combustion.

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Q: Though it can change states, and it often does, what cannot be created or destroyed?
Ans: matter

Q: Which king strengthened Magadha’s power?
Ans: Bimbisara

Q: What was the fortified area in Harappan cities called?
Ans: Citadel

Q: The CAG of India has signed an agreement with the Auditor General of which country to enhance auditing expertise?
Ans: Nepal

Q: Which Bihar festival worships the Sun God?
Ans: Chhath Puja

Q: The largest phylum of the animal kingdom is what?
Ans: arthropods

Q: A lumbar air study is performed on a patient with back pain. Which finding suggests a spinal tumor?
Ans: Spinal cord compression

Q: What was the horse sacrifice ritual called?
Ans: Ashvamedha

Q: On September 8, 2024, Britain, the European Union, and which country signed the world's first AI treaty?
Ans: America

Q: On October 31, 2024, cricketer Matthew Wade of which country announced his retirement?
Ans: Australia

Q: Many species of flowering plants have coevolved with specific what?
Ans: pollinators

Q: Competition that occurs between members of the same species, which improves the species’ adaptations, is called what?
Ans: adaptive behavior

Q: Which modern vaccine prevents rubella?
Ans: MMR

Q: On January 19, 2025, which team won the title of the 78th edition of Santosh Trophy?
Ans: West Bengal

Q: Where has the 'Legends League Cricket Tournament' started?
Ans: Kashmir Valley