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Environmental Science 101 Exam 3 Questions with Correct Answers
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Environmental Science 101 Exam 3 Questions with Correct Answers
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Environmental Science 101 Exam 3 Questions withCorrect Answers
Terracing, contour farming, intercropping, and crop rotation all
________. correct answer✔✔ are techniques for conserving soil
resources and fertility
It is more energetically efficient for us to eat more ________. correct
answer✔✔ plant-based foods
Monoculture, the practice of planting large areas with a single crop
________. correct answer✔✔ is a development of industrial agriculture
The O horizon of soils consists of ________. correct answer✔✔ mostly
organic material
Humus is ________. correct answer✔✔ composed of organic matter and
is necessary to fertility and holding soil moisture
Factors involved in soil formation are ________. correct answer✔✔
weathering of parent material, freezing/thawing, tree roots
Monoculture ________. correct answer✔✔ is an agricultural practice of
growing large stands of a single species
The consequences of overfertilizing include ________. correct
answer✔✔ eutrophication and dead zones in nearby aquatic ecosystems
, Which of the following is true? correct answer✔✔ In 2010 one in four
adults in the US is obese and 3 out of 5 are overweight.
It is often difficult for small local farmers to compete with large
industrial production of crops & livestock.Describe two (2)
environmental benefits to purchasing foods from a small farmer (for
example at a Farmer's Market). correct answer✔✔ Locally grown crops
and livestock travel smaller distances to market, conserving fuel and
reducing the amount of CO2 and other air pollution produced in getting
these goods to market.
Smaller local farms are more likely to grow a variety of crops, reducing
the need to treat fields or livestock with chemical fertilizers, pesticides
and antibiotics.
Green revolution techniques ________. correct answer✔✔ have
increased crop yields but may not be sustainable
Soil is formed by weathering.Describe one of the three forms of
weathering including its mechanism of action. correct answer✔✔
Chemical weathering, physical weathering, biological weathering.
Chemical weathering: Acid precipitation can hasten chemical
weathering. Carbonate rick rocks that look like limestone and marble are
most susceptible and provide the best buffering to the soil.
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