TRUE OR FALSE 1.The oceanic plate consists of a cough below the ocean called semen which is mostly made up of silicon and magnesium. The second type, continental, mostly includes the surfaces of the earth below the continents and it is called sial, which is mostly made up of silicon and aluminum
2. The lithosphere is broken into seperation called boundaries.
3.Most volcanoes of the mid-ocean ridge rise above the ocean's surface.
4.The three principles types of convergent plate boundaries are oceanic-continental convergence, oceanic-oceanic convergence, and continental-continental convergence.
5. The sliding past of two crustal plates in opposite direction is known as Divergent Plate Boundary.
6.The place where tectonic plates meet is called zone.
7.The earth's crust is made up of several major and minor plates.
8.Lithospheric plates have the same thickness everywhere.
9.An oceanic-oceanic convergent plate bkundary occurs when one oceanic plate becomes subducted under another, resulting in the creation of a deep oceanic trench, an island arc, explosive volcanoes, earthquakes, fore arc basin between the trench and the island arc and the back arc basin on the opposite side of the arc.
10.The types of plate boundaries are differentiated by the types of movement they exhibit.

Ecologist: the scottish highlands were once the site of extensive forests, but these forests have mostly disappeared and been replaced by peat bogs. the common view is that the highlands’ deforestation was caused by human activity, especially agriculture. however, [agriculture began in the highlands less than 2,000 years ago]. peat bogs, which consist of compressed decayed vegetable matter, build up by only about one footper 1,000 years and, [throughout the highlands, remains of trees in peat bogs are almost all at depths great than four feet]. since climate changes that occurred between 7,000 and 4,000 years ago favored the development of peat bogs rather than the survival of forests, the deforestation was more likely the result of natural processes than of human activity.in the ecologist’s argument the two portions in [parenthesis] play which of the following roles? a. the first is evidence that has been used in support of a position that the ecologist rejects; the second is a finding that the ecologist uses to counter that evidence.b. the first is evidence that, in light of the evidence provided in the second, serves as grounds for the ecologist’s rejection of a certain position.c. the first is a position that the ecologist rejects; the second is evidence that has been used in support of that position.d. the first is a position that the ecologist rejects; the second provides evidence in support of that rejection.e. the first is a position for which the ecologist argues; the second provides evidence to support that position.