Поставьте предложения в вопросительную и отрицательную формы: 1. it is a difficult matter to give a simple answer to the basic question. 2. land use planning is impossible without land information. 3. such information includes land resources capacity et al. 4. lands are very important resources for men. 5. people of the third world experience great poverty. 6. we observe a high level of living in some developed countries. 7. they have a degree of economic independence.