1) The word "umbrella" contains three vowels: U, E, and A.

2) The Amazon rainforest produces more than 20% of the world's oxygen.

3) The world's oldest university, Al-Qarawiyyin, was founded in 859 AD and is located in Fez, Morocco.

4) The baguette, a long and crusty bread loaf, is synonymous with French culinary culture. It is a staple in French bakeries and is characterized by its crisp exterior and soft, airy interior. The baguette is typically made from wheat flour, water, yeast, and salt and is traditionally shaped by hand. It is enjoyed fresh and is a popular accompaniment to meals, sandwiches, and cheese platters, adding a touch of elegance and tradition to the dining experience.