Select the correct answer from each drop-down menu. Complete the passage about atmospheric carbon dioxide. A warming global climate can create hot and dry regions. It can also contribute to natural CO2 emissions. For example, lightning strikes in a dry forest region can cause . The added CO2 from this event results in a positive feedback loop, increasing heat in the atmosphere as it .

1. A. Valcanoes
B. Wildfires
C. Acid Rain

2. A. Supports Photosynthesis
B. Magnifies the Green House Effect
C. Escapes to Space