Match the following word search table:

Column A		Column B
a.	National Unity	i.	Civics
b.	Industrial Revolution	ii.	Geography and Economics
c.	Industrial Development	iii.	Geography, History and Civics
d.	Constitution	iv.	History

In social studies, different themes and topics often correspond to particular subject areas such as History, Geography, Civics, and Economics. Understanding these relationships helps in organizing curriculum and teaching content effectively.

Key Points

• National Unity is typically linked with History because it involves understanding a nation's past struggles and shared heritage, which helps foster a sense of belonging and identity.
• Industrial Revolution is closely connected with Geography, History, and Civics as it encompasses historical changes, geographical factors affecting industry, and social-political transformations.
• Industrial Development relates mainly to Geography and Economics since it involves studying the location, distribution of industries, resources, and economic growth.
• Constitution falls under Civics because it deals with the fundamental laws and principles that govern a country and its citizens’ rights and duties.

Hence, the correct answer is a - iv, b - iii, c - ii, d - i.