Transportation is the largest source of greenhouse gas emissions in many countries. elaborate
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
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
Deforestation contributes more to climate change than all the world's cars, trains, ships, and airplanes *combined*. 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