Coal deposits in the rock record commonly indicate a freshwater swamp environment. Indicate whether the statement is true or false
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During a major El Niño event, ____
A) record amounts of fish are harvested at the time of the winter solstice B) extensive ocean warming occurs in the eastern tropical Pacific C) eastern trade winds increase in strength D) extensive upwelling occurs in the eastern tropical Pacific
Approximately ________ of the light energy arriving at the surface of a leaf is useful to chlorophyll
A) 5% B) 10% C) 25% D) 50%
Ripples in sand caused by elliptical wave motion tend to
A) slope toward the shore. B) slope away from the shore more steeply than toward the shore. C) slope irregularly depending on the current. D) slope equally away from the shore and toward the shore.
A ________ stream has an interwoven network of small channels separated by much loose debris
A) meandering B) competent C) high-capacity D) thalweg-less E) braided