The document discusses various topics related to oceans and sea pollution including: 1) It provides background on the importance of oceans and water to life on Earth. Approximately 71% of the planet is covered by oceans which provide habitat for many species and play a key role in regulating climate. 2) It discusses two types of sea pollution - direct and indirect. Direct pollution involves toxic waste being dumped directly into oceans while indirect results from land-based pollution eventually making its way into waterways. 3) Other threats to oceans mentioned include overfishing, exploration of non-renewable resources like sand and coral reefs, and dumping of plastic waste which can harm sea life. 4) The conclusion emphasizes that