The answer is faults because when divergent boundaries occur, the tectonic plates move away from each other, therefor creating a fault in the earths crust.
Answer : Option C, The sample will mainly consist of granite.
Explanation:
Sample collected from was continental crust (a part crust) as the samples were from 60 km deep. Continental crust ranges from 30 km to 70 km and this layer is mainly includes granite. This continental crusts is mainly responsible for formation of distinct land-forms like continents.
Statement A ,B and D informs us about the state and temperature of metals(iron) in core that is inner most layer of the earth.
The answer that describes how social networking sites help political campaigns, especially when compared to traditional media is stated below:
They enable campaigns to sample public opinion.
Social network has been introduced for a very long time now and politicians had the opportunity to use it in order to make their campaign widen its scope and for the people to be aware of the politician's point of view, missions, and visions.
