Page 140 - MODUL BAHASA INGGRIS KELAS X

C. Recount
D. Report
E. Spoof

Every single rock on the surface of the Earth-whether it is gravestone, a piece of
solidified lava from a volcano or a boulder that has broken from a cliff or mountain-is
slowly being broken down. This breaking down of rocks at or near the Earth’s surface
is called weathering. The word is used because the weather is mainly responsible.
Weathering turns solid rock into soft materials that may eventually form soil.
Air and water are the cause of most weathering. Sometimes they change the
chemical in the rocks, and sometimes they just break apart the rock physically. If
water seeps into the cracks in the rocks, for example, it may later freeze if the
temperature falls below 0 degrees Celsius. As the water turns to ice, it expands,
pushing against the sides of the rock with a pressure believe to be as much as 2,100
kilograms per square centimetre. This forces the cracks open. Repeated freezing and
thawing causes the fragments to break away from the original rock, these may slide
down a cliff or mountain and form a sloping mass of fragments at the bottom, called
scree.
26. According to the text,….
A. there are two kinds of rock, gravestone and a boulder
B. soft materials will turn to solidified lava through weathering
C. chemical in the rocks causes weathering in every single rock-
D. a cliff or mountain may slide down because of the water in the rocks
E. cracks in the rocks will turn water into ice at the temperature below 0 degrees
Celsius
27. The first paragraph is about….
A. the materials of weathering
B. the process of weathering
C. the impact of weathering
D. the definition of weathering
E. the result of weathering
28. We know from the text that….
A. very solid rock is impossible to break down
B. solid rock can turns into soil because of air and water
C. soft materials harders to eventually become rock
D. the weather can turn lava into gravestone
E. air and water are the main elements of the weather
Remote sensing is the acquisition of information about an object or phenomenon,
without making physical contact with the object. In modern usage, the term generally
refers to the use of aerial sensor technology to detect and classify objects on Earth
(both on the surface, and in the atmosphere and ocean) by means of propagated
signals (e.g. electromagnetic radiation emitted from aircraft or satellites).
There are two main types or remote sensing: passive remote sensing and active
remote sensing. Passive sensors detect natural radiation that is emitted or reflected
by the objects or surrounding area being observed. Reflected sunlight is the most
common source of radiation measured by passive censors. Examples of passive
remote sensors include film photography, infra-red, charge-coupled devices, and
radiometers. Active collection, on the other hand, emits energy in order to scan
objects and areas whereupon a sensor then detects and measures the radiation that
is reflected or backscattered from the target. RADAR and LIDAR are examples of
active remote sensing where the time delay between emission and return is
measured, stabilizing the location, height, speed and direction of an object.

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