Jalisco's economy, which is based mainly on agriculture and other primary production, is one of the largest in Mexico.
The problem is that Gibraltar's future is based mainly on activities damaging to Spain.
The island's economy is based mainly on subsistence agriculture and fishing.
The economy of the Pennines is based mainly on sheep farming and the quarrying of limestone.
The economy of the Fraser River basin is based mainly on forestry.
The economy is based mainly on farming and fishing, and the major export is copra.
In peaceful times, manufacturing is based mainly on agricultural and pastoral raw materials.
Some analysts have said that Trump's affection for Putin is based mainly on his own, and his circle's, economic interests.
The other problem is that Google's motoring "Matrix" is based mainly on the infrastructure and inhabitants of California.
The Vietnamese legal system is based mainly on Napoleonic principles but with bits adapted from the Chinese and Soviet models.
Industry is based mainly on agricultural produce and includes milled flour, canned fruit and vegetables, and beverages.
