What is a lahar?
What will be an ideal response?
A lahar is a type of fluid mudflow; it is not necessarily triggered by a volcano.
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How does "brain drain" impact the underdeveloped countries?
A) Talented people (doctors, engineers, scientists) move to the developed world. B) Inadequate nutrition during childhood prevents the young from being healthy. C) Schools are often unfunded, which means talents are not fully developed. D) Investments in infrastructure are often poorly made and do not complement one another (an area might have running water but no electricity). E) None of the above are impacts of "brain drain."
The wind-chill index takes into account the wind speed at about ____ above the ground instead of the where official readings are usually taken
a. ?10 m (33 ft) b. ?5 m (16.5 ft) c. ?100 m (330 ft) d. ?1.5 m (5 ft) e. ?15 m (50 ft)
Weather changes over time, but climate does not.
Answer the following statement true (T) or false (F)
Which of the following environmental conditions is not necessary for coral growth?
A) A hard substrate B) High turbidity C) Salt water D) Strong sunlight E) Wave or current action