Episodes of coral bleaching have become more frequent and more severe in the last 20 years.
Answer the following statement true (T) or false (F)
True
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The Indian subcontinent was originally attached to _______.
a - Sima b - Gondwanaland c - Tasmania d - Laurasia e - Sial
Which of the following statements is TRUE of lake-effect snowfall?
A) Lake-effect snowfall accounts for only a small portion of seasonal snowfall along the eastern edges of the Great Lakes. B) Lake-effect events are produced through the modification of mP air masses. C) Along the Great Lakes, lake-effect snowfall usually only occurs within 80 km of the leeward lake shores. D) Lake-effect events are not capable of generating more than a centimeter or two of snow.
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.
The principle that can be used to determine the relative age of an igneous intrusion called a dike is the principle of
A. superposition. B. unconformities. C. cross-cutting relations. D. original horizontality.