Answer:
Photosynthesis replace CO2 with O2 in the atmosphere. Plants prepare their food by this process.
The burning of hydrocarbon in the presence of O2 is called combustion.
CH4. + O2-----------> CO2. + H2O + Heat
Hydrocarbons undergo combustion.
Geology is yhe branch of science which deals with the study of earth. The person that studies geology is geologist.
Explanation:
Under the leaf, but a microscope must be used.
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what are the choices? 0-0
Mutualism , is the correct answer