: Photosynthesis removes carbon dioxide from the air, while respiration and combustion (burning fossil fuels) add it.
"Iodine solution turns blue-black if starch is present." ()
Over time, the butterfly population began to recover, and the villagers were thrilled to see the colorful insects flitting about the forest once again. The research team had not only solved a mystery but had also contributed to the conservation of the local ecosystem.
Leading the research team was Dr. Emma, a renowned entomologist who had spent years studying the behavior and habitats of butterflies. She and her team, including her assistants, Alex and Maya, set up a research station near the forest to begin their investigation.
: Leaves are tested with iodine solution; a blue-black color indicates the presence of starch produced during photosynthesis. 3. Respiration and Gas Exchange