When an element tends to lose its valence electrons in chemical reactions, it behaves more like a .

Sound is a disturbance that travels through a medium as a

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

Identify some abiotic characteristics of the tundra biome.