Soil peds give the soil a particular structure and are aggregates of individual mineral particles
True False
Indicate whether the statement is true or false
T
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Which of the following defines a sonic boom?
A. It is a form of lightning. B. It is produced by static electricity in the atmosphere. C. It is caused when an aircraft flies faster than the speed of sound. D. It occurs with lightning.
Urban sprawl has resulted in
A) wildlife habitat fragmentation. B) decreased reliance on fossil fuels. C) decreased production of greenhouse gases. D) increased dependence on family farms for food.
Typically, upper-level air flow is slower over anticyclones than over cyclones
Indicate whether the statement is true or false
In a blast furnace, coke, which is solid carbon, reacts with O2(g) to form carbon monoxide. The carbon monoxide then reacts with Fe2O3(s) to produce solid iron and carbon dioxide. Which of the following is the balanced equation for this combined process?
A) 2 Fe2O3(s) + 3 C(s) + 3 O2(g) ? 2 Fe(s) + 3 CO2(g) B) 2 Fe2O3(s) + 2 C(s) + 3 O2(g) ? 4 Fe(s) + 2 CO2(g) C) 2 Fe2O3(s) + 6 C(s) + 3 O2(g) ? 4 Fe(s) + 6 CO2(g) D) 2 Fe2O3(s) + C(s) + 3 O2(g) ? Fe(s) + CO2(g)