Peppermint and peppermint oil are LIKELY SAFE when taken by mouth in amounts commonly found in food, when taken in medicinal amounts, or when applied to the skin. The leaf is POSSIBLY SAFE when taken in amounts used for medicine short-term (up to 8 weeks). The safety of using peppermint leaf long-term is unknown.
Itâs clear that in order to have the current balance of elements that Earth has further up, the core must be 85 percent iron and 10 percent nickel. That has meant that 5 percent of it has remained up for grabs, so to speak, to anyone who can come up with a convincing enough theory.
Earth can be divided into three main layers: the core, the mantle and the crust. Each of these layers can be further divided into two parts: the inner and outer core, the upper and lower mantle and the continental and oceanic crust. Both the inner and outer core are made up of mostly iron and a little bit of nickel. The inner core is solid while the outer core is liquid. This liquid flowing deep down below us is what produces Earth's electromagnetic current. And it's pretty hot in the core-about as hot as the surface of the sun! The mantle is the thicket layer of Earth, making up about 85% of Earth's volume.