Answer:
pollution is the introduction of harmfull material in the invironment called pollution
La Niña is sometimes referred to as the cold phase of ENSO and El Niño as the warm phase of ENSO. These deviations from normal surface temperatures can have large-scale impacts not only on ocean processes, but also on global weather and climate.
the best organism for that would be grass because it collects water and sun energy and shares the energy with other organisms.
hope this helps you good luck.!!!!