Do you know what measurement Eratosthenes is famous for?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Magnetic polarity reversal
xMagnetic polarity reversal : A magnetic polarity reversal is a change of the earth's magnetic field to the opposite polarity. This has occurred at irregular intervals during geologic time.
Scientists have learned that microbes that live in the soil, like fungi and bacteria, don't produce more carbon dioxide when the climate is warmer. In fact, at first these microbes will produce more carbon...Read more