ESCI 1103: Quiz 1

From GeoClasses

Quiz 1:

There are 100 people living on an isolated island. The population begins to grow with a doubling time of 20 years. After 100 years, how many times has the population doubled? ____ What is the total population at this time? ___

If the resources on the island will only support 25,000 people, how many years will it take approximately for the population to reach that number? ___

Plot the population growth curve for the first 100 years and continue the curve until you can estimate the time at which this maximum population is reached.

plot showing population growth for quiz 1 (pdf file)

years	# people
0	100
20	200
40	400
60	800
80	1600
100	3200
120	6400
140	12800
160	25600

• Population doubles 5 times in 100 years.
• Total population after 100 years is 3200.
• It takes about 160 years to reach 25,000 people.