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What are balloons made of?
A balloon can be defined as an inflatable flexible bag filled with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. Modern balloons are made from materials such as rubber, latex, polychloroprene, metalized plastic or a nylon fabric. Long before there was something as stretchy as rubber, balloons existed.

How big is ocean?
around 139 million square miles
The world's ocean covers 71% of Earth's surface, which equates to around 139 million square miles (360 million square kilometers) of salty blue.

What does the Bible say about tattoos?
But in the ancient Middle East, the writers of the Hebrew Bible forbade tattooing. Per Leviticus 19:28, “You shall not make gashes in your flesh for the dead, or incise any marks on yourselves.” Historically, scholars have often understood this as a warning against pagan practices of mourning.

The fly agaric is a fungus in the Amanitaceae family and its main body consists of microscopic filaments known as hyphae that exist in the soil, and persist throughout the year. The filaments are like tiny threads, and the network formed by them is known as a mycelium.

Why do people love coconut?
Coconut can fight inflammation.

"As a part of a healthy diet, coconut shows antioxidant activity due to its polyphenol content," explains Hewlings. "Virgin Coconut Oil (VCO) is a rich source of phenolic compounds, such as caffeic acid, ferulic acid, and more.

How does smoking cause harm?
Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs. Lung diseases caused by smoking include COPD, which includes emphysema and chronic bronchitis. Cigarette smoking causes most cases of lung cancer.

How old is graffiti?
The first drawings on walls appeared in caves thousands of years ago. Later the Ancient Romans and Greeks wrote their names and protest poems on buildings. Modern graffiti seems to have appeared in Philadelphia in the early 1960s, and by the late sixties it had reached New York.

What are great things about apples?
This nutritious fruit offers multiple health benefits. Apples may lower your chance of developing cancer, diabetes, and heart disease. Research says apples may also help you lose weight while improving your gut and brain health. Apples are the most widely consumed fruit globally.

Cats are believed to be the only mammals who don't taste sweetness. Cats are nearsighted, but their peripheral vision and night vision are much better than that of humans. Cats are supposed to have 18 toes (five toes on each front paw; four toes on each back paw). Cats can jump up to six times their length.

Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide. Clay is the oldest known ceramic material. Prehistoric humans discovered the useful properties of clay and used it for making pottery.