A. an ecosystem comprises a community and the abiotic environment.
Answer:
Natural Resource.
Explanation:
Fossil fuels are hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of dead plants and animals. In common dialogue, the term fossil fuel also includes hydrocarbon-containing natural resources that are not derived from animal or plant sources
<span>The answers are visual spectrum and pupil. The visible light spectrum is a narrow band of frequencies ranging from 390 to 780 wavelengths long. These wavelengths are detectable by the eye and the different length corresponds to different colors.
The pupil determines how much light can enter the eye. It dilates and constricts depending on the amount of light available.</span>
