Much of the art created for use by the Catholic Church during the Renaissance used iconography. What is iconography and how did the Church use it to support its ideas and teachings?

Iconography represents presentation of Jesus Christ, Virgin Mary, apostles and other motifs from the Bible. Church used it to strengthen its authority among the believers and to spread Christianity among believers.

Explanation:

Question of usage of iconography in Churches was a question that was risen in the Middle Ages. In the Renaissance many artists were included in this process. Just take for the example the Sistine Chapel and works that Michelangelo managed to finish there. Church influenced many people with this and tried to strengthen its role.

The rise of air pollution in Chinese cities is a direct result of the increased economic activity (and very fast economic growth) that globalization has generated.

Explanation:

This is because China, since the 1980s and 1990s, has become a "workshop" for the world: and industrial powerhouse that produces all kinds of manufacturing products for both the Chinese market, and the world market. In fact, China has benefited from the outsourcing of hundreds of thousands of American and European jobs, mainly due to the lower Chinese labor costs.

This increased economic activity, and the consequent higher rise in energy demand, has resulted in serious problems of air pollution in several Chinese cities. For example Beijing, the capital, often has emergency air pollution levels in winter, due to the higher energy demand caused by the use of heating that is mainly powered by coal energy plants.