Christianity is the world's largest religion with over 2 billion followers. It is based on the teachings of Jesus Christ and has three main branches: Catholicism, Eastern Orthodoxy, and Protestantism.

Igneous rocks are formed when magma (molten rock underground) or lava (molten rock above ground) cools and solidifies. Examples of igneous rocks include granite, basalt, and obsidian.

Mathis Wackernagel is a Swiss-born sustainability advocate who co-created the Ecological Footprint and developed the carbon footprint concept in the 1990s to compare human demand on nature with Earth's ecological capacity to regenerate.

Selective breeding, also known as artificial selection, is the process by which humans have developed modern wheat varieties to have shorter ears for easier harvesting and improved properties like higher yields and disease resistance.

Jupiter, the largest planet in our solar system, has the shortest day, rotating on its axis approximately once every 9.9 hours.

Andrew is the name of the dog, who Mary Poppins could also understand through her strange magic!

Nevermind was Nirvana's second studio album. Released in September 1991, it featured their hit single "Smells Like Teen Spirit" and has sold over 30 million copies worldwide, making it one of the best-selling albums of all time.

Mars is about 1.5 times as far from the Sun as Earth is. Because of this greater distance, the Sun would appear about half as big as it does in Earth's sky if you were standing on Mars.

Katharine Hepburn holds the record for the most Academy Awards won by an actress. She won four Best Actress trophies over a career that spanned more than six decades.

Demeter, in Greek mythology, is the goddess of the harvest and agriculture, presiding over grains and the fertility of the earth. She is also known for being the mother of Persephone, whose annual descent into the underworld brings about the winter season.