evolution had yet to hit on the idea of incorporating ocean minerals into exoskeletons. The extreme age of these organisms, combined with the fact that soft tissues were almost never preserved in the fossil record, leads to a frustrating conundrum: paleontologists know that the earliest preserved ...
Calcium carbonate comprises more than 4 percent of the earth's crust, according to the Industrial Minerals Association of North America. Calcium carbonate reacts with acids, producing carbon dioxide. The compound is also the main component of stalactites and stalagmites, which are cave formations c...
Glaciersslowly shape the landscapeeven in modern times. Glacial ice has been carving valleys and depositing minerals in neighboring regions long before humans dominated the Earth. For more interesting glacier facts, expand your knowledge with the following list. 1. Glaciers Are a Rare Sight Today C...
Meteorites are fragments of asteroids that fall to ground on Earth. Scientists classify these objects according to their chemical makeup (what chemicals exist in them), their isotopic compositions (the types of each chemical element they contain), and their mineralogy (the minerals they contain). ...
Fact 16: Humans have caused significant changes to the global phosphorus cycle through various activities such as misuse of phosphorous fertilizers, shipping of phosphorus minerals, as well as shipping of food from farms to urban settings where it is lost as effluent. This has led to increased le...
aand redeposition of many of these minerals into deposits of salts, gypsum, Limonite, Calcite, Dolomite, Siderite, Magnesite, carbonates, Phosphorite, opal, chalcedony, etc. (See the table of coarse-grained Igneous rocks.) 并且许多的再沉淀这些矿物到盐、石膏、褐铁矿、方解石、白云岩、菱铁矿、菱镁...
Urine is 95% water, 2.5% urea, and 2.5% of other mixtures of minerals, salts, and enzymes. It is a blood byproduct and is nontoxic.[4] While urine has been used to treat a wide range of ailments—including birthmarks, AIDS, and Kaposi’s sarcoma—most physicians argue it has little...
By Greg Hunter’s USAWatchdog.com (Early Sunday Release) Financial writer and professional trader Rick Ackerman says the economy is tanking, and there is no way to avoid an economic depression. Ackerman explains, “It’s going to be an interesting depres
More Facts About Sedimentary Rocks Sedimentary rocks are very important in helping us to find clues about the Earth’s past. Lucky we’ve got them then. Most of chemical sedimentary rocks come from minerals left behind by evaporated water! Wow. ...