Which of the following is true of branched chain hydrocarbons?
A) The longest carbon chain becomes the root name
B) The longest carbon chain is always written horizontally
C) both a and b
D) neither a nor b
A
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How would a fish be classified in a marine ecosystem?
a. benthos d. planktonic b. epifaunal e. choices B and C c. nektonic
Shifting cultivation is most commonly found in which climate region?
A) humid low-latitude B) dry C) warm mid-latitude D) cold mid-latitude E) undifferentiated Highlands.
Which of the following statements do not apply to flash floods?
A) form from high-intensity rainfall in small, steep, drainage basins. B) are hard to predict because they happen so unexpectedly. C) are deepest in narrow bedrock canyons. D) progressively inundate larger and larger areas of the floodplain.
Instructions: Choose one answer from each pair of selections. Air pressure at the top of a mountain is ALWAYS | NEVER greater than the air pressure at its base