1. When cities in the Northern Hemisphere are having their coldest temperatures, what is happening in the Southern Hemisphere?
2. The two cities near the equator have nearly the same temperature all year. Is that true for other places?
3. What is the variation in temperature over the course of a year called?

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

bal is blood alcohol level. bac will normally be higher in a person with more body fat. so the answer to your question would be, as body fat decreases, the increasing rate of bal decreases.