These statements describe the nile river.

ancient civilizations once lived along the nile.
fertile lands surround the nile.
few people live near the river.
the nile provides irrigation for surrounding farms.
the nile runs through libya and tunisia.

After reading the statement for answer, I noticed that some were true and some were false.  So, I'll assume your question is related to that fact.

Here's an analysis of the statements:

Ancient civilizations once lived along the Nile.

TRUE. That's why we encounter the pyramids in that region.

Fertile lands surround the Nile.

TRUE, since the Nile is THE most important source of water in the area, it's logical for it to be the location of agriculture.

Few people live near the river.

FALSE.  In Ancient times and today, the Nile shores host most of the population of Egypt, a large part of the country being essentially a chunk of the Sahara desert.

The Nile provides irrigation for surrounding farms.

TRUE. The Nile is virtually the only source of abundant water in the area.

The Nile runs through Libya and Tunisia.

FALSE. Libya and Tunisia are WEST of the country of Egypt and have nothing to do with the Nile.

So, depending if you had to find the TRUE or FALSE statements in this list, make your pick.  I hope that helps.

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.