In the United Kingdom, a "quarter" is a term commonly used in the context of weight or mass, especially in agricultural and trade settings. A "quarter" in the UK refers to a quarter of a hundredweight (cwt).
In the United Kingdom:
1 quarter (UK) = 28 pounds (lbs)
So, when you see "quarter" used in the context of weight or mass in the UK, it generally means 28 pounds. This term is frequently used in the sale and trade of agricultural products and livestock, where quantities are often expressed in multiples of quarters. It's important to note that the UK quarter is different from the US quarter, which is 25 pounds.
The petagram (Pg) is a unit of mass in the metric system. It is equal to one quadrillion (10^15) grams. The petagram is commonly used in scientific and environmental contexts, particularly in discussions related to global carbon cycles, climate change, and large-scale ecological measurements.
To put it in perspective, one petagram is equivalent to 1,000 teragrams (Tg) or 1,000,000 gigagrams (Gg). It is a valuable unit for measuring and quantifying large quantities of materials, such as the mass of carbon stored in forests or the carbon emissions from human activities on a global scale. While not commonly used in everyday conversation, the petagram plays a crucial role in scientific research and discussions concerning the Earth's ecosystem and climate.