Ammonia plays a key role in the neutralization of atmospheric acids such as sulfate and nitrates. A few in situ observations have supported the theory that gas-phase NH 3 concentrations should ...

Welcome to Winged Canvas, your Online School of Illustration and Art Nerd Community! 🌟 We're not just a YouTube channel; we're a collective of passionate artists and educators on a mission to ...

A rapid-fire drawing challenge to sketch an entire city in 30 minutes, packed with pro tips on buildings, perspective, and speed techniques. Klobuchar condemns Mike Lee’s posts about Minnesota ...