A milligram (mg) is a unit of mass in the metric system and the International System of Units (SI). It is equal to one one-thousandth of a gram, which means that 1 milligram is equivalent to 0.001 grams. The milligram is a small unit of mass commonly used for measuring very small quantities of substances, especially in scientific, medical, and pharmaceutical contexts.
For example, when you see the dosage of a medication listed on a prescription or on over-the-counter drugs, it is often measured in milligrams. Additionally, in laboratory settings, chemicals and substances are frequently measured in milligrams due to its precision in measuring small quantities.
A teragram (Tg) is a unit of mass in the metric system, specifically in the International System of Units (SI). It represents one trillion grams or 10^12 grams. The metric system is a decimal-based system of measurement used worldwide, and it offers a convenient way to express both large and small quantities of mass.
To give you a sense of scale, here are some common mass comparisons involving the teragram:
Teragrams are typically used in scientific and environmental contexts, especially when discussing large quantities of substances like water, soil, or air pollutants. For example, the total mass of carbon stored in forests on Earth might be expressed in teragrams, or the annual emissions of a greenhouse gas could be measured in teragrams per year.