Why is it useful to study shipbuilding and railways together among causes of deforestation?

Correct answer: Both increased demand for strong timber

Direct answer: Option A, both shipbuilding and railways increased demand for strong timber. To understand the link, begin with the material needed: ships required durable wood for hulls and other parts, while railways required durable wood for sleepers, bridges and related construction. Step by step: colonial expansion created transport and naval needs; both needs required large quantities of useful timber; forests were cut to supply it; therefore these two topics are profitably studied together as causes of deforestation. Option A is correct because it identifies their common resource requirement. Option B is wrong: neither shipbuilding nor railways made forests into worship places. Option C is wrong because both depended directly on wood. Option D is wrong because neither activity ended cultivation; the issue here is timber extraction and changing land use. The question asks why they should be connected, not whether they were identical in every detail. Memory cue: ships need strong wood to float and railways need strong wood to support tracks.