The consolidated or unconsolidated materials from which soils develop is known as
A) bedrock. B) regolith. C) parent material. D) outcrop.
C
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The term applied to the rapid increase in crop yields as a result of new high yielding varieties of rice with the use of fertilizer, pesticides, mechanization and irrigation is known as _____________________________.
Fill in the blank(s) with the appropriate word(s).
In cold weather, when the air is calm, the temperature we perceive—called the sensible temperature—is often ____ a thermometer might indicate
a. lower than b. higher than c. the same as d. a fraction of what e. at least twice as high as
Tropical oceans are generally characterized by low net primary productivity. What are three environments that are exceptions to this and what factors contribute to their higher productivity?
What will be an ideal response?
A stream or river that flows all year is referred to as
A. perennial. B. a tributary. C. ephemeral.