In most cases, as altitude increases, the air in the troposphere cools. Vertical mixing occurs as a result of warm air rising. However, a layer of cool air may form beneath a layer of warm air on occasion. Temperature/thermal inversion refers to this deviation from normal temperature.
When an inversion occurs, polluted areas (such as London and Donora PA) experience unhealthy air and an increase in smog because pollutants are trapped at ground level rather than circulating away.
Answer:
Population pyramids are used by demographers as a tool for understanding the make-up of a given population, whether a city, country, region, or the world. Learning about, using, and understanding these pyramids is an important part of AP Human Geography and AP Environmental Science.
Explanation:
I hope this help
Alexander spread Greek technology and ideas through his empire where people talked and visited from all areas to see what had been done.
B) Granite is an igneous rock.
Answer:
probability = 0.2 %
Explanation:
given data
imaginary radius = 34 × 
km
planet Syrene radius = 6800 km
to find out
what is the probability that it would strike the Syrene
solution
so probability will be here
probability = 
probability = 0.002
so we can say probability in % is 0.002 × 100
probability = 0.2 %
