Fill in the gaps with the words derived from the given ones

There are two types of countries. The first one is called [ ]. These are the counties with a very high level of life. The second group is known as [ ] countries with a low income, [ ] developed industry and a low gross domestic product.

The second group of countries can also be characterised by not very [ ] attitude to [ ] in general. The chance that [ ] will begin to pay attention to the environment is [ ] small because most of these countries have more important problems such as [ ], poverty or war. That's why [ ] from all over the [ ] are trying to help.