Question

4. The work UI
Q.1 List the
shake.
major damage.
1. Why does the earthquake occur?
2. What is man-made earthquake?
3. What are the precautionary measures for earthquake?
ve the
word:
IV. Read the extract and answer following questions:
Earthquakes are the shaking and moving of the ground when energy is released in waves. These
movement of large sections of the Earth's crust, called plates. The place where two plates meet
water. Seismic waves, however, move through the ground. Most earthquakes are caused by the
waves are called seismic waves. These waves are similar to ocean waves, which move through
directions, they build up energy at the fault line. When enough energy builds up, the stress on
is called a fault. Faults look like large cracks in the ground. If the two plates move in different
the fault becomes too great and it ruptures. This releases the energy and the ground starts to
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. The 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



thx, for the answer ​

Answer 1

you gave the answer itself

Answer 2

Explanation:

4 Once all the penguins have been rescued, one last boat visits all the

other rocks to check for penguins. The boat starts and finishes at

Penguin Rock

Plan a journey the boat can make so that it visits all the rocks.

Then work out the distance the boat will travel.

26 km

ROCK B

38 km

Rock C

77 km

23 km

18 km

27 km

Rock F

33 km

25 km

Penguin

Rock

21 km

20 km

75 km

Rock E

Rock D

32 km

IV. Read the extract and answer following questions:

Earthquakes are the shaking and moving of the ground when energy is released in waves. These

movement of large sections of the Earth's crust, called plates. The place where two plates meet

water. Seismic waves, however, move through the ground. Most earthquakes are caused by the

waves are called seismic waves. These waves are similar to ocean waves, which move through

directions, they build up energy at the fault line. When enough energy builds up, the stress on

is called a fault. Faults look like large cracks in the ground. If the two plates move in different

the fault becomes too great and it ruptures. This releases the energy and the ground starts to

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. The 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