Which of the following describes how an Abiotic factor can impact the population dynamics in an ecosystem? A. Organisms that compete for the same resources will keep each other from overpopulating
B. Predators will prevent herbivores from depleting the plants and other resources in an ecosystem
C. A parasite that invades a host can reproduce and cause a decline in the host species population
D. Seasonal variations in temperature can cause some of the individuals in a population to die

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

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the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.