a$)$ Show how you would represent the impact Hurricane Katrina had on the New Orleans area. Explain briefly why you believe your picture changes in the way you illustrated. $(1$ point$)$

b$)$ Show the effect of a prolonged drought. Explain briefly why you believe your picture changes in the way you illustrated. $(1$ point$)$

c$)$ Economic statistics indicate that unemployment in Spain has risen from $8\mathrm{.}6\%$ in the first quarter of $2018$ to $25\mathrm{.}02\%$ in the fourth quarter of $2018.$ Show how you would represent the impact of this dramatic increase in unemployment in Spain. Explain briefly why you believe your picture changes in the way you illustrated. $(1$ point$)$

d$)$ Congress is currently considering a new immigration policy that would allow people with the entrepreneurial skills and the money to start new businesses permission to emigrate to the U$.$S$.$ if they start a business in this country that employs at least $5$ U$.$S$.$ workers. Show how you would represent the impact of this policy on the U$.$S$.$ Explain briefly why you believe your picture changes in the way you illustrated. $(1$ point$)$