Explanation: Water boils at 100 degree celsius at sea level under normal atmospheric pressure.

Explanation: In Roman Numeral, C represents 100. When C appears twice as CC we add values together.

Explanation: There are seven continents on Earth,Africa, Antarctica, Asia, Europe, North America, Australia, and South America.

Explanation: There are 8 planets in our solar system,Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Explanation: The first animal to orbit Earth was Laika, a dog sent into space by the Soviet Union in 1957 aboard the spacecraft Sputnik 2.

Explanation: The Arctic Tern holds the record for the longest migration of any animal. This small seabird travels an astonishing round-trip distance of approximately 71,000 kilometers (44,000 miles) every year.

Explanation: The blue whale is the largest mammal on Earth, weighing up to 200 tons and measuring up to 100 feet in length.

Explanation: Plants absorb carbon dioxide from the atmosphere during photosynthesis to produce food.

Explanation: The cell is the basic unit of life, making up all living organisms.

Explanation: Chameleons can change their skin color to blend with their surroundings and communicate.

Explanation: Charles Babbage is known as the 'Father of Computers' for designing the first mechanical computer.

Explanation: The cheetah is the fastest land animal, capable of reaching speeds up to 70 mph.

Explanation: Cocoa beans are the main ingredient in chocolate, providing its rich flavor.

Explanation: Diamond is the hardest natural substance known, often used in cutting tools and jewelry.

Explanation: The ancient Egyptians were the first recorded civilization to use a form of toothpaste, as early as 5000 BC.

Explanation: The femur, or thigh bone, is the largest and strongest bone in the human body.

Explanation: George Washington was the first President of the United States, serving from 1789 to 1797.

Explanation: Water consists of two hydrogen atoms and one oxygen atom, giving it the chemical formula H2O.

Explanation: The heart pumps blood throughout the body, delivering oxygen and nutrients to tissues.

Explanation: Jupiter is the largest planet in our solar system, known for its massive size and Great Red Spot.

Explanation: The Mona Lisa, one of the most famous paintings in the world, was created by Leonardo da Vinci.

Explanation: The lion is often referred to as the 'King of the Jungle' due to its strength and dominance.

Explanation: Mandarin Chinese is the most spoken language in the world, with over 1 billion speakers.

Explanation: Mount Everest is the tallest mountain in the world, standing at 8,848 meters (29,029 feet) above sea level.

Explanation: New Zealand is famous for having more sheep than people. The sheep population far exceeds the human population, with around five sheep per person

Explanation: The ocean quahog clam can live for over 500 years, making it the longest-living known animal.

Explanation: 'O' is the chemical symbol for oxygen, an essential element for life.

Explanation: The Pacific Ocean is the largest and deepest ocean, covering more than 60 million square miles.

Explanation: Paris is the capital city of France, known for landmarks like the Eiffel Tower and the Louvre.

Explanation: Sneezing is a reflex action that helps protect your nasal passages and lungs.

Explanation: 'Romeo and Juliet' is a famous tragedy written by William Shakespeare, the renowned English playwright.