People living in cities from the late 1850s through at least the 1930s often
A) used electricity generated by oil and natural gas fuels.
B) purchased wood to heat their homes.
C) suffered respiratory diseases.
D) rode on trains that were powered by natural gas.
C
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Donor democracy has been responsible for many improvements in African human rights reform
a. True b. False Indicate whether the statement is true or false
Earth's radiative equilibrium temperature is the
a. average temperature at which Earth is absorbing solar radiation and emitting infrared radiation at equal rates. b. average temperature at which Earth is radiating energy at maximum intensity. c. average temperature Earth must maintain to prevent oceans from freezing solid. d. temperature at which rates of evaporation and condensation on Earth are in balance. e. temperature that humans and animals can survive in on Earth.
The "tragedy of the commons" refers to a situation in which the cumulative effect of large numbers of people trying to exploit a widely available or shared resource can degrade it and eventually exhaust or ruin it.
Answer the following statement true (T) or false (F)
?Match the term with the correct description.
A. ?population projected to triple between by 2050 B. ?makes up about 25% of the U.S. population C. ?country with the world's highest percentage of people age 65 and older D. ?the world's fourth largest economy E. ?world's most populous country