Photosynthesis converts light energy into chemical energy in plants. It involves the absorption of light by chlorophyll in leaves. Carbon dioxide and water are converted into glucose and oxygen. The process takes place in the chloroplasts of plant cells. Photosynthesis is essential for producing oxygen and sustaining life on Earth.
Climate change leads to melting sea ice, reducing polar bears' hunting grounds. It causes a decline in seal populations, their primary prey. Polar bears are forced to travel longer distances to find food. It affects their reproductive rates and cub survival. Increased human-polar bear conflicts as bears venture into human settlements.