What is the differing between biotic and abiotic

An occluded front moves over the farmland that has been experiencing drought conditions. what change in weather will this front likely bring? a. gray skies, but no rain b. an extended period of rain c. more dry air and sunny skies d. violent, short-lived thunderstorms

Why did southern business leaders want to increase the number of slaves

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0