1.) what's nh3? a.) nirate b.) nitrite c.) nitrogen gas d.) ammonia 2.) what's n2? a.) nirate b.) nitrite c.) nitrogen gas d.) ammonia 3.) what's no2? a.) nirate b.) nitrite c.) nitrogen gas d.) ammonia what's no3? a.) nirate b.) nitrite c.) nitrogen gas d.) ammonia

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

Select the correct answer. what does the process of natural selection involve?