Causes of environmental pollution

The layer of soil that is a mixture of minerals and organic material is the a) O horizon b) A horizon c) humus d) E horizon e) primary layer

The northern part of the Midwest is referred to as the “rust belt” because of its cold temperatures and generous precipitation

Which statement about El Salvador is not true?a. El Salvador is prone to earthquakes.
b. El Salvador is the largest country is Central America.
c. San Salvador is the largest city in El Salvador.
d. In addition to Spanish, several indigenous languages are spoken in El Salvador.

Which of the following describes an example of land reclamation

The following outline is the basic structure for which government type? 1. Power is divided between national and regional governments. 2. The people elect the head of the government, usually a president. 3. The people elect representatives to a lawmaking body. a. A constitutional monarchy

b. A dictatorship

c. A federal democracy

d. A parliamentary democracy

Which of the following statements best describes how endemic diseases impact a nation’s population? A. Endemic diseases can result in decreasing population numbers: many people die from diseases, and others move away from or avoid moving to places where diseases are rampant. B. Endemic diseases can result in increasing population numbers: people living in areas where certain diseases are prevalent tend to have more children because there is a risk that some will die. C. Endemic diseases can result in decreasing population numbers: people living in areas where certain diseases are prevalent tend to have fewer children. D. Endemic diseases can result in increasing population numbers: areas where certain diseases are prevalent attract more medical professional and researchers who move to these areas for jobs.