Why is it the air temperature outside is colder than the temperature water turns to ice but the ice on the sidewalk melts?

Which 50 year period was the peak period for the discovery of the elements? Who was the Laurentian Divide named after? Which structure runs down the length of the testicle then turns upward into the body where it becomes a narrower tube called the vas deferens? When or where does the dead star happen? What are radio waves primarily used for? Which is the correct term for the movement of an electrical charge across a membrane? How did Gilbert Lewis change the definition of an acid? What solid state of water is knowing as? Are there atoms in genes? What is a rifle scope with 6-24x50 and what animals should you hunt with it? Why don't we ever run out of rocks? What is the term for the figure produced when the chromosomes of a species during meta phase are arranged according to their homologous pairs? What size breaker for 120 volt 2500 watt water heater? How many pounds of beans are in a pint? What is the subgroup for class? What is uses of holding liquids? 31500 square feet equals what percentage of an acre? What does gps mean on a ring? How do you Least to greats blue light X-rays microwaves orange light infrared radiation? What is Garnet Polish?