Answer:
- fragmenting states
- artificial landmasses
Explanation:
There are several ways a new state could form even if all of Earth's land was allocated to current nations. One of the possibilities is that a current state fragments to form two (or more) smaller states.
Another possibility is that nations construct artificial landmasses or habitable platforms in the oceans that are independent countries. Finally, in the future it may be possible to settle the continent of Antarctic if the Antarctic Treaty is ever not renewed.
The sun appears to cross the plane of Earth's equator
when it reaches either one of the "equinox" points in the sky.
At those times, the lengths of day and night are nominally equal
everywhere (except at the poles), and the occasions are marked
as the beginning of Spring and Autumn.
The correct answer is - A. Devonian.
The Devonian is one of the seven periods of the Paleozoic Era. It lasted for 50 million years, from 410 million years ago until 360 million years ago. It is the period in which the first insects evolved, the first seeded plants, as well as the first land vertebrates. This period came after the Silurian period, and was followed by the Mississippian period.
