Give three natural causes of earthquakes.
-Movement of magma through crustal rocks/vulcanicity.
-Isostatic adjustment.
-Tectonic movement/faulting/folding.
-Convectional currents in the mantle.
-Gravitative pressure.
-Energy release in the mantle.
b)i) Name two types of seismic waves.
-Primary/P waves.
-Surface longitudinal waves/L waves
-Secondary waves/S waves.
ii) What is vulcanicity?
The process through which liquid or gaseous materials are forced out
of the interior into the earth’s crust or onto the earth’s surface.
c) State two causes of vulcanicity.
-High pressure in the interior of the earth which is released by earth movements.
-High temperatures which cause solid rock material change into molten state/magma.
-Faulting which creates cracks and fissures in the rocks through which magma escapes.
steve williams answered the question on November 17, 2017 at 10:28
-
Apart from equatorial rain forest name two other types of forests that are found in Africa.
(Solved)
Apart from equatorial rain forest name two other types of forests that are found in Africa.
Date posted:
November 17, 2017
.
Answers (1)
-
(a) Name two types of river deltas. (b) State four conditions that are necessary for the formation of a river delta.
(Solved)
a) Name two types of river deltas.
b) State four conditions that are necessary for the formation of a river delta.
Date posted:
November 17, 2017
.
Answers (1)
-
(a) State two reasons why the interior of the earth is still very hot. (b) Give the two layers of the earth’s crust
(Solved)
a) State two reasons why the interior of the earth is still very hot.
b) Give the two layers of the earth’s crust.
Date posted:
November 17, 2017
.
Answers (1)
-
(a) State two conditions that favour the formation of fog. (b) Name three other forms of precipitation that are common in Kenya.
(Solved)
(a) State two conditions that favour the formation of fog.
(b) Name three other forms of precipitation that are common in Kenya.
Date posted:
November 17, 2017
.
Answers (1)
-
Use the map below to answer the question (i),(ii) and (iii)
(Solved)
Use the map below to answer the question (i),(ii) and (iii)
(i)Name river marked Y
(ii)Name town market H
(iii)Name the canal marked Q
Date posted:
November 17, 2017
.
Answers (1)
-
Identify the fishing method represented by the diagram below
(Solved)
Identify the fishing method represented by the diagram below
Date posted:
November 17, 2017
.
Answers (1)
-
The diagram below shows soil catena
(Solved)
The diagram below shows soil catena
(i)Name the type of soils found in position W and Z
(ii)State two characteristics of soils found in section marked in W and Z
Date posted:
November 16, 2017
.
Answers (1)
-
Use the diagram below to answer the questions that follows
(Solved)
Use the diagram below to answer the questions that follows
(a)Identify the weathering process shown above
(b)Describe how rocks are weathered through the above process
Date posted:
November 16, 2017
.
Answers (1)
-
The organism below is found in kingdom fungi
(Solved)
The organism below is found in kingdom fungi
Name the parts marked K,L and M
Date posted:
November 16, 2017
.
Answers (1)
-
The map below shows some vegetation zones of Kenya.use it to answer question below
(Solved)
The map below shows some vegetation zones of Kenya.use it to answer question below
Name the vegetation zone marked X and Y
Date posted:
November 16, 2017
.
Answers (1)
-
State the importance of glacial features
(Solved)
State the importance of glacial features
Date posted:
November 15, 2017
.
Answers (1)
-
State ways in which waves in Indian ocean erode its coast
(Solved)
State ways in which waves in Indian ocean erode its coast
Date posted:
November 14, 2017
.
Answers (1)
-
Explain reasons why fresh water fishing is high in East Africa
(Solved)
Explain reasons why fresh water fishing is high in East Africa
Date posted:
November 12, 2017
.
Answers (1)
-
Explain the importance of field work
(Solved)
Explain the importance of field work
Date posted:
November 10, 2017
.
Answers (1)
-
Identify the earliest system of writing developed by the Sumerians.
(Solved)
Identify the earliest system of writing developed by the Sumerians.
Date posted:
November 10, 2017
.
Answers (1)
-
Name two electronic sources of information on History and Government.
(Solved)
Name two electronic sources of information on History and Government.
Date posted:
November 10, 2017
.
Answers (1)
-
Who swears in the speaker of the National Assembly in Kenya?
(Solved)
Who swears in the speaker of the National Assembly in Kenya?
Date posted:
November 10, 2017
.
Answers (1)
-
State and explain eight advantages of wind energy
(Solved)
State and explain eight advantages of wind energy
Date posted:
November 10, 2017
.
Answers (1)
-
Define the term transhumance
(Solved)
Define the term transhumance
Date posted:
November 7, 2017
.
Answers (1)
-
Outline two factors that have led to change from subsistence farming to commercial farming
(Solved)
Outline two factors that have led to change from subsistence farming to commercial farming
Date posted:
November 7, 2017
.
Answers (1)