<span>The oldest rocks are Early Proterozoic metamorphic rocks</span>
Weathering is described as a passive agent of landform development because it is not directly affecting it.
The one that directly affect the landform are wind, water movement, and tectonic activities. Weathering only affect the formation of these factors.
Geologists theorize that the earth's center consists of predominantly iron. <span>The outer portion of the center, known as the "outer core", is thought to be liquid iron. While the interior portion of the center, known as the "inner core" is thought to be solid iron. Hope this helps.</span>
B.) human effort and ideas drive production.
Answer:
b. its wavelength shortens
Explanation:
Hope this helps!
