The correct answer is Option C) The environments of Australia and Asia are completely different, despite their relative close proximity.
The naturalist and father of zoo - geography Alfred Russel Wallace noted a distinct difference in the fauna between several islands in the Malay Archipelago (present-day Indonesia). He used these differences to delineate the boundary between the Australian and Oriental biogeographic realms. The reason behind this difference is that the environments of Australia and Asia are completely different, despite they are in a very close proximity relatively.
<h3>Why is the environment of Australia and Asia different?</h3>
The Wallace line is a boundary line drawn by British naturalist Alfred Russel Wallace on the basis of difference in fauna in the year 1859 between Asia and Australia. The reason and the root cause behind this faunal distinction is that the ancient supercontinent named Gondwana was separated entirely from other parts of the world when Pangaea broke up. The current Australia and the smaller islands were a part of Gondwana and this is why their fauna is so different from that of South - East Asia, even if they are very close together relatively.
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Answer:
Super position
Faunal Succession
Crosscutting Relationships
Inclusions
Explanation:
Superposition: The most basic concept used in relative dating is the law of superposition. Simply stated, each bed in a sequence of sedimentary rocks (or layered volcanic rocks) is younger than the bed below it and older than the bed above it. This law follows two basic assumptions: (1) the beds were originally deposited near horizontal, and (2) the beds were not overturned after their deposition.
Faunal Succession: Similar to the law of superposition is the law of faunal succession, which states that groups of fossil animals and plants occur throughout the geologic record in a distinct and identifiable order. Following this law, sedimentary rocks can be “dated” by their characteristic fossil content. Particularly useful are index fossils, geographically widespread fossils that evolved rapidly through time.
Crosscutting Relationships: Relative ages of rocks and events may also be determined using the law of crosscutting relationships, which states that geologic features such as igneous intrusions or faults are younger than the units they cut across.
Inclusions: Inclusions, which are fragments of older rock within a younger igneous rock or coarse-grained sedimentary rock, also facilitate relative dating. Inclusions are useful at contacts with igneous rock bodies where magma moving upward through the crust has dislodged and engulfed pieces of the older surrounding rock.
D. An X-Y coordinate system, with the origin at 0° latitude and 0° longitude
Answer:
root wedging
Explanation:
Due the tropical climate, there will be presence of trees which will aid rooting wedging in Weathering of rocks
