Drip irrigation systems are
A) less efficient than traditional flood or center-pivot systems.
B) cheaper, compared to traditional flood or center-pivot systems.
C) producing greater crop yields.
D) used for most irrigation of crops in the United States.
C
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A rock will preserve its remnant magnetism as long as it is not heated above the Curie point. Indicate whether the statement is true or false
Ecosystem services are often classified into four different categories that include provisioning services (supplying us with food, air, and water), as well as ________
A) regulating, cultural, and supporting services B) aesthetic, spiritual, and recreational services. C) aesthetic, cultural, and sustainable services D) regulating, sustainable, and homeostatic services E) aesthetic, ecological, and regulating services
In what environments does low pressure- high tempereature metamorphism occur?
a) near magma but a shallow levels b) near magma but at deep levels c) under normal conditions of burial and heating d) in a subduction zone or accretionary prism
Respiration uses carbon dioxide and produces oxygen and energy.
Answer the following statement true (T) or false (F)