Carbon is the only element that can form such a wide variety of complex molecules, due to its ability to form four strong covalent bonds. elaborate
Water expands when it freezes, unlike most other substances. elaborate
Toxicity isn't always immediately apparent; some substances have delayed effects, meaning symptoms might not show up for hours, days, or even years after exposure. elaborate
In the context of mathematics, a sequence can converge to a limit that's *not* part of the sequence itself. elaborate
Recycling aluminum cans saves 95% of the energy it takes to make new aluminum from raw materials. elaborate
Microplastics have been found in the deepest parts of the ocean, including the Mariana Trench. elaborate
Air pollution can reduce the lifespan of vehicles and other machinery due to corrosion and wear. elaborate