Question

Write a paragraph that explains the increase and how technologies that have appeared over

the past 100 years may have contributed to the increase or may have prevented more
significant increases in greenhouse gas levels.

Answer 1

Mar 4, 2011 — Past changes in Earth's temperature happened very slowly, over ... Human activities contribute to global warming by increasing the greenhouse effect. ... Emissions of carbon dioxide, the most important greenhouse gas, ... Even slight rises in average global temperatures can have huge effects. ... 100 years.

Step-by-step explanation: