Which layer of the atmosphere would a scientist investigating weather study?

mesosphere

thermosphere

exosphere

troposphere

What is the question? if you were looking to design a method of separating something, you can separate this compound by putting both in water and allowing the water to dissolve the sugar. then pour it into another beaker and evaporate it then boom! salt and sugar : ) 

only b 

The answer would be semen as a whole but the cells contained are called sperm and they fertilize the eggi hope this