Answer:
a mid-ocean ridge
Explanation:
The landform expected to be formed along this margin is a typical mid-ocean ridge.
- A mid - oceanic ridge forms along the margins of a divergent zone.
- In this place, mafic and ultramafic magma are brought to the surface
- They cool and solidify in such environment.
- Iceland harnesses the geothermal energy from this diverging boundary to meet some of her energy needs.
Eastern Europe & the (former) Soviet Union transitioned to a:
Market-based economy.
Answer:
Option (A)
Explanation:
In the above-given question,
Option (B) is wrong with it's usage of the modifier "how'' in the sentence. If the modifier is used in one place (how heat from the inner core flows), it should also be used in the continuing clause (how the formation and periodic reversal).
Options (C) and (D) are wrong in using the word "are" for the whole sentence as there is no need to use this word. The verb form will depend on the subject, in this case, is "the discovery that earth's inner core" which is singular in nature. Thus, the verb form will be -is and not -are.
Option (E) is wrong for it's use of the comma. If the comma is used, then the whole sentence is not a full-fledged sentence but rather a dependent clause with no resolution.
The correct answer for the given passage is option (A).
