1. Which countries did NOT benefit in the 1950’s?

The countries recovering in Europe, like Spain and England.The developing countries.The United States and England.

2. How much did the population grow from 1900 to 1965?

From 1650 to 8000 million.From 1650 to 6500 million.From 1650 to 3334 million.

3. What problem did NOT come up due to the urbanization process in the cities?

Difficulties to process solid waste.The dollar price increase.Great environmental problems.

4. What is NOT a problem between the U.S.A. and Mexico?

The difficulties to process solid waste.The migration from Mexico to the U.S.A.The dollar price increase.

5. What problem has NOT been addressed by the Mexican government?

Toxic gas emissions.Migration.Housing services in cities.