Misuse of soil can reduce soil fertility.
Answer the following statement true (T) or false (F)
True
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Which of the following would occur if all photosynthetic processes on Earth were to cease?
A) Carbon dioxide levels in the atmosphere would increase, and oxygen levels would decrease. B) Carbon dioxide and oxygen levels in the atmosphere would decrease. C) Carbon dioxide and oxygen levels in the atmosphere would increase. D) Carbon dioxide levels in the atmosphere would decrease, and oxygen levels would increase.
Why does Earth have plate tectonics?
a. denser oceanic crust (relative to continental crust) b. thicker oceanic crust (relative to continental crust) c. relatively rapid cooling d. convection currents and released heat deep within the mantle e. active volcanoes (in the past and present)
Why might a high-formula-mass alcohol be insoluble in water?
A) A high formula mass alcohol would be too attracted to itself to be soluble in water. B) The bulk of a high formula mass alcohol likely consists of nonpolar hydrocarbons. C) Such an alcohol would likely be in a solid phase. D) In order for two substance to be soluble in each other their molecules need to be of comparable mass.
How long does marine life usually tend to recover from a crude oil spill?
a. 2 years b. 5 years c. 7 years d. 10 years