Which age cohorts are the most mobile in terms of migration?

A. under 15 years of age
B. over 65 years of age
C. 39-65 years of age
D. 15-39 years of age


Answer: D

Environmental & Atmospheric Sciences

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Maoist rebels disrupted the political stability of _____ for several decades, until a ceasefire agreement was concluded in 2006.

A. Bangladesh B. Nepal C. Sri Lanka D. Pakistan

Environmental & Atmospheric Sciences

A 4-kg ball has a momentum of 12 kg ? m/s. What is the ball's speed?

A) 3 m/s B) 4 m/s C) 12 m/s D) 48 m/s E) none of the above

Environmental & Atmospheric Sciences

The ultimate source of groundwater is the oceans

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

The general pattern of atmospheric carbon dioxide concentration between 1960 and 2010 reveals

A) a steady increase from about 310 ppm to the current 400 ppm. B) no significant increases until the year 2005. C) mitigation of an increasing trend due to reduced use of fossil fuels. D) that most of the increase is the result of agricultural wastes and deforestation.

Environmental & Atmospheric Sciences