Rewrite the sentences, replace underlined words using words and expressions in the vocabulary section.

1. Recently, the country's economy has suffered a decline in industry concerned with making things.
2. The university has long been in a very important position in agricultural science.
3. The river delta tends to suffer catastrophic flooding on a regular basis.
4. One can often see local shepherds looking after large flocks of sheep on the hillsides.
5. In the late 18th century, migrants made their home in the uncultivated lands towards the north of the country.
6. In the extremely dry southern provinces, plant life is sparse.
7. In the cold northern regions, the landscape consists mostly of permanently frozen ground with no trees.
8. The tribes that have always existed naturally in the eastern jungles are now facing threats to their way of life.
9. The farmlands are dotted with woods that lose their leaves in winter, while the large forests of trees that are always in leaf provide the country with much-needed timber.
10. The flat grasslands of the northern USA experienced a severe long period with no rain last year.