How many heating degree-days are there for a day with a maximum temperature of 30°F and a minimum temperature of 20°F? (Assume a base temperature of 65°F.)
A) 65
B) 45
C) 40
D) 35
C
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Which of the following is not a heteroatom?
A. N B. P C. O D. both A and B E. All of the above are heteroatoms.
Read carefully through the paragraph below, and decide which of the options is correct. A shallow sea existed in North America approximately 425 million years ago
This ancient geography was interpreted based on the sedimentary rocks in the region of that age. Mudstone, limely shale and shaley sandstone mark the location of the shallow sea. Sandstone occurred near the ancient shoreline and conglomerate occurred near the source area. Clasts of volcanic and plutonic rocks in the conglomerate imply the uplift and erosion of igneous rocks of nearby mountains. A) The word "igneous" should be replaced by "metamorphic". B) The word " mudstone" should be replaced by " limestone". C) The word "shale" should be replaced by " sandstone". D) The word " shallow" should be replaced by "deep".
In developing countries, as in Europe, the poor are accommodated in the center whereas the wealthy live in the outer rings of cities, as well as in a sector extending from the center
Indicate whether the statement is true or false.
Approximately 70 percent of Americans live in urbanized areas, including about 30 percent in central cities and 40 percent in surrounding jurisdictions
Indicate whether the statement is true or false.