Physical Geography is a sub-train of two significantly bigger fields of study - Geography and Earth Sciences. The primary reason for Physical Geography is to clarify the spatial attributes of the different common wonders related with the Earth's hydrosphere, biosphere, climate, and lithosphere
The answer is B, geologic map. the reason is the study of Geological history is <span>The specific science that is devoted to the study of the Earth, particularly the solid Earth and the rocks that compose it. I hope this helps. </span>
Populations are influenced by fluctuations in any of the abiotic cycles. The fluctuations of seasonal cycles can cause populations to hibernate, migrate, or breed. Organisms breed as a result of seasonal fluctucations that cause them to have a limited resource supply. Fluctuations in the phosphorus cycle can cause <span>changes to aquatic ecosystems, either positive or negative.</span>
Answer AND Explanation:
The variations that Darwin regarded as raw materials for the process of evolution have been traced to changes that occur at the gene level or the chromosome and these changes are called mutations. Organisms with beneficial mutations are able to pass them on to their offspring during reproduction. Transmission of such mutations through many generations could lead to the emergence of new species. The emergence of new species requires a long time and is also affected by the rate of mutations that a particular species undergoes. This leads to evolution.
Explanation:
Positive feedback occurs to increase the change or output: the result of a reaction is amplified to make it occur more quickly. Negative feedback occurs to reduce the change or output: the result of a reaction is reduced to bring the system back to a stable state.
