a. Sir Isaac Newton wanted to invent an air conditioner for birds. He constructed a fanlike device and pointed it at the apple tree where his favorite birds perched. The fan converted the energy of the apples in the tree into energy, and they fell on Newton's head. And now we have a theory of gravity.

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

How does concentration affect reaction rate

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves