<span>In which state would a direct democracy work best?
A small state with a population of educated citizens</span>
I think its A. small contained climates that differ from areas surrounding them
hope this helps XD
Answer:
![T = 3.23 \times 10^{-83}](https://tex.z-dn.net/?f=T%20%3D%203.23%20%5Ctimes%2010%5E%7B-83%7D)
Explanation:
thickness of aerosol layer is 2.5 km
zenith angle is 40 degree
we know that
![\tau = \epsilon_{ext} . h](https://tex.z-dn.net/?f=%5Ctau%20%3D%20%5Cepsilon_%7Bext%7D%20.%20h)
where
![\epsilon_{ext} = N.\sigma_{ext}](https://tex.z-dn.net/?f=%5Cepsilon_%7Bext%7D%20%3D%20N.%5Csigma_%7Bext%7D)
is extinction coefficient
extiction cross section
N = Concentration
![\sigma_{ext} = (2.5 + 0.45)\times 10^{-12} m^2](https://tex.z-dn.net/?f=%5Csigma_%7Bext%7D%20%3D%20%282.5%20%2B%200.45%29%5Ctimes%2010%5E%7B-12%7D%20m%5E2)
![= 2.95 \times 10^{-12} m^2](https://tex.z-dn.net/?f=%3D%202.95%20%5Ctimes%2010%5E%7B-12%7D%20m%5E2)
![\epsilon_{ext} = 2\times 10^7 \times 2.95 \times 10^{-12} m^2 \times m^{-3}](https://tex.z-dn.net/?f=%5Cepsilon_%7Bext%7D%20%3D%202%5Ctimes%2010%5E7%20%5Ctimes%202.95%20%5Ctimes%2010%5E%7B-12%7D%20m%5E2%20%5Ctimes%20m%5E%7B-3%7D)
![\tau = 5.9 \times 10^{-5} m^{-1} \times 2.5\times 10^3 m](https://tex.z-dn.net/?f=%5Ctau%20%3D%205.9%20%5Ctimes%2010%5E%7B-5%7D%20m%5E%7B-1%7D%20%20%5Ctimes%202.5%5Ctimes%2010%5E3%20m)
![= 14.75\times 10^{-2}](https://tex.z-dn.net/?f=%3D%2014.75%5Ctimes%2010%5E%7B-2%7D)
transimiitance ![T = e^{\frac{-\tau}{\mu}}](https://tex.z-dn.net/?f=T%20%20%3D%20e%5E%7B%5Cfrac%7B-%5Ctau%7D%7B%5Cmu%7D%7D)
![T = e^{\frac{- 14.75 \times 10^{-2}}{cos 40}}](https://tex.z-dn.net/?f=T%20%20%3D%20e%5E%7B%5Cfrac%7B-%2014.75%20%5Ctimes%2010%5E%7B-2%7D%7D%7Bcos%2040%7D%7D)
![T = 3.23 \times 10^{-83}](https://tex.z-dn.net/?f=T%20%3D%203.23%20%5Ctimes%2010%5E%7B-83%7D)
TRUE i just took the test and it was correct