Southeast animals in Asia are diverse true
Afghan refugees living in Iran to escape terrorism - Push factor
Bangladeshi migration to India due to flood - Push factor
Admission to university in England - Pull factor
Migration to Canada for a better lifestyle - Pull factor
Migration to America to escape religious persecution - Push factor
Entrepreneur moving to Singapore for a better business opportunity - pull factor
Answer: Even though there are smalll amounts of these gases, they can have a major effect on Earth. For example, increased amounts of carbon dioxide are having a major effect on global warming. :)
