Question

Identify and discuss the three major sources of research problems

Answer 1

Primary sources are original materials on which other research is based, including: ...

Secondary sources are those that describe or analyze primary sources, including: ...

Tertiary sources are those used to organize and locate secondary and primary sources.

Answer 2

These resources, called productive resources, are often classified into three groups: natural resources, human resources, and capital resources. Natural resources (often called land) refer to resources such as coal, water, trees, and land itself. Raw materials used in production come from natural resources.