Wollow to project a positive image of Pakistani nation.
(20)
The following passage contains some highlighted words, guess the meaning of
those words and se them into sentences of your own. Write down summary of the
passage as well
(15)
Earthquake are the shaking and moving of the ground when energy is released in
waves no waves are called seismic waves. These waves are similar to ocean
waves, which move through water. Seismic waves, however, move through the
ground. M carthquakes are caused by the movement of large sections of the
Earth's
c a lled plates. The place where two plates meet is called a fault. Faults
look like lane cracks in the ground. If the two plates move in different directions,
they build up energy at the fault line. When enough energy builds up, the stress on
the fault becomes too great and it ruptures. This releases the energy and the
ground starts to shake. Earthquakes can also be caused by other natural events.
such as landslides and volcanoes. Man-made earthquakes happen because of
nuclear testing and mining explosions, first movement of an earthquake, called the
main shock, is often followed by smaller ground trembles, called aftershocks.
These aftershocks are the plates settling into their new position. Aftershocks can
continue for days after the main shock. There are an estimated 500,000 earthquakes
around the world each year. Most are so mild they are only recorded on scientific
instruments. Only about 100,000 can be felt by humans. Of these, only about 19 a
year cause major damage Major earthquakes in populated areas can cause huge
destruction. Buildings collapse, roads and bridges buckle and crack, and electrical
and gas lines break and cause fi res. If the earthquake happens in the ocean, it
makes a series of huge ocean waves called a tsunani. The tsunami travels until it
finally reaches land, where it causes large flooding. Scientists are searching for
ways to predict. earthquakes. They study the historical patterns of earthquakes and
monitor the movement of the plates with seismic equipment. While they cannot
predict an exact date of a future earthquake, they have a better understanding of
when earthquakes are more likely to happen
Answers
Answered by
0
Explanation:
jankari ke liye dhannybad........
janke khush hui .....
bye.....
have a good day.....
Similar questions