-It states that the earth's crust is divided into tectonic plates, such as; North American plate,Nasca plate,Eurasian plate etc.
-The plates are mobile and float on molten rocks of the upper mantle
-Heat in the upper mantle produces a system of convectional currents which carry the plates along
-The plates form the stable areas of the earth's crust
-In between the plates are plate boundaries which form unstable zones, mobile zones and the effect of the movement of plates is noticed at the mobile zones
-As the plates move, three types of boundaries are formed
-The extension boundary, where the plates are moving away from each other
-Where the plates are moving towards each other, a compressional boundary is formed.
-The shear boundary is formed where the plates are moving latellary past each other
Githiari answered the question on October 25, 2017 at 13:45
-
Explain two causes of earthquakes
(Solved)
Explain two causes of earthquakes
Date posted:
October 25, 2017
.
Answers (1)
-
Define the term earthquakes
(Solved)
Define the term earthquakes
Date posted:
October 25, 2017
.
Answers (1)
-
Identify three causes of mechanical weathering
(Solved)
Identify three causes of mechanical weathering
Date posted:
October 25, 2017
.
Answers (1)
-
Differentiate between a till plain and outwash plain
(Solved)
Differentiate between a till plain and outwash plain
Date posted:
October 25, 2017
.
Answers (1)
-
Identify two rift valley lakes in Kenya
(Solved)
Identify two rift valley lakes in Kenya
Date posted:
October 25, 2017
.
Answers (1)
-
The local time at 0 degrees is 8 pm.What is the longitude whose local time is 5 pm
(Solved)
The local time at 0 degrees is 8 pm.What is the longitude whose local time is 5 pm
Date posted:
October 25, 2017
.
Answers (1)
-
Give two proofs that shows that the earth is spherical
(Solved)
Give two proofs that shows that the earth is spherical
Date posted:
October 25, 2017
.
Answers (1)
-
Name the largest physiographic region in Kenya
(Solved)
Name the largest physiographic region in Kenya
Date posted:
October 25, 2017
.
Answers (1)
-
Name three types of soil classification
(Solved)
Name three types of soil classification
Date posted:
October 25, 2017
.
Answers (1)
-
Name two leaching processes
(Solved)
Name two leaching processes
Date posted:
October 25, 2017
.
Answers (1)
-
State one natural cause of acid rain
(Solved)
State one natural cause of acid rain
Date posted:
October 25, 2017
.
Answers (1)
-
Define the term relative humidity
(Solved)
Define the term relative humidity
Date posted:
October 25, 2017
.
Answers (1)
-
Name one force that determines the speed and direction of wind
(Solved)
Name one force that determines the speed and direction of wind
Date posted:
October 25, 2017
.
Answers (1)
-
Differentiate between weathering and erosion
(Solved)
Differentiate between weathering and erosion
Date posted:
October 25, 2017
.
Answers (1)
-
State two factors that affect atmospheric pressure
(Solved)
State two factors that affect atmospheric pressure
Date posted:
October 25, 2017
.
Answers (1)
-
Given that the maximum temperature is 29 degree celsius, and the minimum temperature is 23 degrees celsius in a day, calculate; ...
(Solved)
Given that the maximum temperature is 29 degree celsius, and the minimum temperature is 23 degrees celsius in a day, calculate;
i)Mean daily temperature
ii)Diurnal range of temperature
Date posted:
October 25, 2017
.
Answers (1)
-
State one characteristic of the Sima
(Solved)
State one characteristic of the Sima
Date posted:
October 25, 2017
.
Answers (1)
-
Explain the benefits of the Yala Project
(Solved)
Explain the benefits of the Yala Project
Date posted:
October 25, 2017
.
Answers (1)
-
State the objectives of reclaiming the Yala Swamp
(Solved)
State the objectives of reclaiming the Yala Swamp
Date posted:
October 25, 2017
.
Answers (1)
-
State five factors to be considered when selecting a wasteland for agricultural use
(Solved)
State five factors to be considered when selecting a wasteland for agricultural use
Date posted:
October 25, 2017
.
Answers (1)