Select the best answer for the question.
5. This question is based on the following paragraph. The sentences are numbered to help you answer the question.
(1) Earth's crust is made up of relatively rigid plates that ride atop Earth's hot, semiliquid mantle. (2) The plates are called tectonic because they're in constant motion. (3)
They can move because Earth's mantle
is a very hot and semiliquid fluid called magma. (4) Volcanoes are a result of magma rising up or erupting through a plate,
particularly where plate boundaries
are moving against each other. (5) Also, when plates slide
against each other, causing friction along adjacent plate boundaries,
earthquakes frequently occur. (6) Therefore
, we often find volcanoes and earthquakes along
plate boundaries. (7) Plates may also collide. (8) When that
happens, mountain
ranges are formed. (9) For example, the
collision of the plate carrying the Indian subcontinent created
the Himalayan Mountains when it collided with the Asian plate
.
Which statement about this paragraph is accurate?
A. There are no supporting details for the main idea.
B. The author uses comparison and contrast to organize ideas.
OC. The topic sentence is the found in the last line.
OD. There is an implied topic - the moving plates in Earth's crust have many effects.