1. What is a black hole? 2. Who first predicted the existence of black holes? 3. What theory is black hole formation based on? 4….

1. Which continent has the largest population? 2. The smallest continent by area is: 3. Which continent has the highest population density (P/Km²)? 4. Antarctica…

1. Which city of Iran has the biggest refinery of the world? 2. Why Aberdeen city of England is an important city? 3. Adelaide city…

1. What is the capital of Japan? 2. The currency of Brazil is: 3. Which country has the largest population (2024)? 4. The official language…

1. Cambodia was earlier known as 2. Rhodesia’s new name is 3. Belize was formerly known as 4. Abyssinia is the old name of which…

1. What is the shape of the Earth according to modern science? 2. How many types of geometries describe the universe’s large-scale structure? 3. What…

1. How many countries are there landlocked in the world? 2. How many countries are landlocked in Asia continent? 3.How many landlocked countries are there…

1. What are cosmic voids? 2. What are cosmic filaments? 3. What is the general distribution of galaxies in the universe on a large scale?…

1. Which is the longest artificial waterway in the world? 2. Which is the longest artificial waterway in the world? 3.Which canal connects the Atlantic…

1. Which is the largest gulf in the world? 2.The Bay of Bengal is located in which ocean? 3. Which gulf is located between Iran…