China has little environmental restrictions on industries making them extremely profitable at the expense of the environment, that's one of the reasons why China is one of the fastest-growing economies
A submarine canyon is a steep-sided valley that is cut into the bed's of the continental slopes and is an extension of the continental shelf and gains a height of 5 meters. The submarine canyons are found on the active margins and active margins and turbidity are denser and their erosion is triggered by the underwater landslides.