When was Earth Hour 2024 observed?

Explanation: Earth Hour 2024 was observed globally on 23 March to raise awareness about climate action.

Q: Helices, spheres, and rods are examples of what distinguishing property of prokaryotic cells?
Ans: shape

Q: The relative sizes of the atoms show several trends with regard to what visual method of organization?
Ans: periodic table

Q: How many types of molecular orbitals can form from the overlap of two atomic s orbitals on adjacent atoms?
Ans: ten

Q: What is the primary source of sulfur dioxide in the atmosphere?
Ans: Industrial emissions

Q: Where is the seafloor youngest?
Ans: mid-ocean

Q: Which will be the fourth capital city of the Northeast region to come under railway connectivity by July next year?
Ans: Aizawl

Q: What can we learn about a wave by finding the product of the wavelength and frequency?
Ans: type

Q: Where was the opening ceremony of the first Gulf Youth Games held on April 26, 2024?
Ans: Dubai

Q: What happened during the Chauri Chaura incident in 1922?
Ans: Police station burned

Q: What percentage of Americans rated the economy positively in April 2025?
Ans: 23%

Q: Which lubricant is used in a vehicle’s wheel bearings?
Ans: Grease

Q: Which nurse introduced the concept of holistic nursing care in community settings?
Ans: Lillian Wald

Q: Who has been included in Time Magazine's list of 100 most influential people in the world on April 18, 2024?
Ans: Alia Bhatt

Q: What regulates the Kosi River’s floods in Bihar?
Ans: Kosi Barrage

Q: Which mountain range is in Central India?
Ans: Vindhya Range