Volcanoes, Earthquakes & Tidal Waves Worksheet-4
Multiple Choice Questions (with more than one option):
(A) Volcanic eruptions (B) Earthquakes
(C) Vehicle accidents (D) Tidal waves
(A) Active (B) Dormant (C) High
(D) Low (E) Extinct
(A) Underground nuclear explosions
(A) Check if anyone needs primary first aid or emergency services
(B) Spread rumors to worsen the situation
(C) Operate the electrical appliances
(D) Keep the streets vacant for the emergency services
(E) Do not crowd the damaged areas
a. Tidal waves, earthquakes and volcanoes cause great damage and loss of human and animal life.
b. Underground pressure pushes up the molten rock.
c. Saturn is believed to have some active volcanoes.
d. The volcanoes that may erupt at any time or have erupted in the recent past years are known as extinct volcanoes.
e. Volcanoes are usually in the form of conical mountains.
f. Lava on cooling solidifies and form rocks.
g. An island “Kingdom Of Tonga” was formed by the eruption of undersea volcanoes.
h. Violent shaking movements caused by shifting rocks are known as aftershocks.
i. The point on the Earth’s surface directly above the focus of an earthquake is known as target point of an earthquake.
j. We can reduce/avoid accidents during earthquake by following certain safety rules.
k. Earthquake can cause landslides and fires.
n. The Richter scale has eight levels.
m. Level 1 in the Richter scale indicates an earthquake that is almost not felt.
o. Earthquake can cause destruction of properties, lives etc.,
p. Tidal wave is the common name for “Tsunami”.
q. The amount of damage caused by an earthquake is dependent on the type of ground on which the structures are built.
Write “should” or “should not” for the following statements regarding the actions to be taken at the time of an Earthquake.
Fill in the blanks:
(17) a.True; b. True; c. False; d. False; e. True; f. True; g. True; h. False; i. False; j. True; k. True; n. True; m. True; o. True; p. True; q. False
(18) should not/ shouldnot
(21) Tidalwave/ Tidal waves/ Tidalwave/ Tidalwaves