What things on Earth need to be conserved?

Well, the list of the things that need to be conserved on Earth is going to be very long. I am only listing some of these for reference.

• Water: Among all of the resources, water is probably the most precious one. Unlike many other resources, it cannot be created. We not only need to conserve water, but also its quality.


• Air: Similar to water, air is also needed for our existence and we need to control and conserve its quality as well.


• Fuels: Specifically, fossil fuels need to be conserved. These include coal and petroleum, among others. They have served as the main source of energy for fueling our industrialization and development. We need to conserve them for future generations' sake.


• Wildlife: This needs to be conserved as well. Our actions have already caused countless species to become endangered and extinct. They need to be conserved to prevent that disastrous effects on the ecosystem that would occur, and are occurring, when some species go extinct.


• Plants: These need to be conserved as they are the primary source of food and oxygen for organisms, and make up the base of all ecosystems.


• Soil: This is the surface where plants grow and hence needs to be conserved to maintain its fertility. 

So many more things can be added to this list. 

Hope this helps.