Why are collisions between pluto and neptune impossible

Sugar is dissolved in water. which is the solute? sugar neither both water

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

How is it possible for someone to put an ear to a wall and hear someone in the next room?     a.sound waves can travel though solids.    b.the waves travel from room to room via air.    c.there must be some air in the wall so the sound can travel through it.    d.sound waves change to electromagnetic waves and then back again.