Why is crediting Watson & Crick with the discovery of the structure of DNA a controversy in science?

What is the relationship of air masses and the temperature of oceans?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons