1.	The following map shows the normal peak times for fall foliage. Why are the leaves on trees turning colors as far south as New Mexico and Tennessee in late September while the leaves in areas to the north don't change colors until the middle of October?
		A.	The intense heat from the summer dries out the leaves much more than in some of the surrounding areas. Thus, the leaves change color earlier.
		B.	The temperatures in and around mountains are much cooler than some of the areas surrounding them. Thus, the leaves change color earlier.
		C.	The temperatures in and around mountains are much warmer than some of the areas surrounding them. Thus, the leaves change color earlier.
		D.	The lack of rain throughout the year dries out the leaves much more than in some of the surrounding areas. Thus, the leaves change color earlier.
		Hint
	2.	The following map shows the normal peak times for fall foliage. Which state contains trees that change color from early October through early November?
		A.	North Carolina	B.	Maine
		C.	Washington	D.	Wisconsin
		Hint
	3.	The table below shows the population in the state of Illinois for the past 100 years, in 10-year increments. Predict the population in the year 2010.
		A.	14,875,967	B.	14,001,524
		C.	15,795,102	D.	12,565,300
		Hint
	4.	The table below shows the population in the state of Illinois for the past 100 years, in 10-year increments. Predict the population in the year 2050.
		A.	15,573,246	B.	18,689,909
		C.	23,737,491	D.	20,010,342
		Hint