Plains<span> occur as lowlands along the bottoms of </span>valleys<span> or on the doorsteps of mountains, as coastal </span>plains<span>, and as plateaus or uplands. In a </span>valley<span>, a </span>plain<span> is enclosed on two sides but in other cases a </span>plain<span> may be delineated by a complete or partial ring of hills, by mountains or cliffs.</span>
In the earths mantle the convection currents pass through the mantle which then causes friction in the tectonic plates causing earthquakes,volcanoes or tsunamis
Answer:
Landforms are the physical features on the Earth's surface. Mountains, Plateaus and Plains are some major landforms of the Earth
Explanation:
Layer G must be older than layer F, according to the law of superposition. So the answer is Paleozoic era, I believe.
