Answer: Water, Sunlight, Carbon Dioxide, and oxygen
Explanation: Hope this helps
A. Earth
Geocentic, is a theory of Ptolemy. Where the Earth is the center of the solar system.
Cell,tissues ,Organs and Organ Systems. After tissues, organs are the next level of organization of the human body. An organ is a structure that consists of two or more types of tissues that work together to do the same job. Examples of human organs include the brain, heart, lungs, skin, and kidneys
The ecosystem will collapse and fail because every species are needed and play a role in the ecosystem.
