What is the name for a deposit formed where a stream enters a lake or ocean?
A. Levee
B. Alluvial fan
C. Delta
D. Point bar
Answer: C
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A white dwarf is a former
A. white giant. B. low-mass star. C. high-mass star.
Answer the following statement(s) true (T) or false (F)
1. The chemicals needed by the Green Revolution have polluted India's environment. 2. India was forced to join the global economy after the collapse of the Soviet Union. 3. The number of states in India has remained the same since independence. 4. An expanding industry in Bangladesh is garment manufacture. 5. Sri Lanka has a diversified industrial base.
In 1974, Dr. Rowland and Dr. Molina made what observation regarding ozone (O3)?
A) Ground-level O3 irritates human eyes and respiratory systems. B) Anthropogenic O3 releases were a major culprit in global warming. C) The photochemical interactions of chlorofluorocarbons and O3. D) Automobile exhaust and sunlight were producing photochemical smog.
What is the definition of an ephemeral stream?
A) A distributary channel on a stream delta B) A stream that meanders back and forth across a valley C) A stream that has interweaving channels and is choked with sediment D) An intermittent stream that only has water after specific episodes of rain