We should help the world by not throwing away plastic bags and bottles in the ocean because if you do you will damage the sea creatures. The horrible deforestation is killing animals habitats and trees give us globally 30 percent of oxygen and with out it it would be a huge problem.

noise, pollution is bad because it causes animals to not hear again or they could die from a heart attack for example cars ,planes.

air pollution is caused by power plants makes toxic chemicals that make the air polluted and if air is polluted that causes for it to become harder to breathe.