Activity 6: Picture Analysis
Directions. Read and analyze figures A and B. Answer the questions stated below.
a. Figure A shows the process of convection in the earth's mantle. How does
it affect the formation of mountains and the temperature in the surface
(ground)?
b. How the convection current affects the movement of tectonic plates?
C. How convection in earth's interior and conduction in the surface affect the
temperature in our atmosphere?
d. How subduction cause the formation of land mass like mountains and
volcano?
e. Why does earthquake occur in subduction zone? (The area where
subduction occur)
Synthesis: Based from figure A and B, how convection and conduction is inter-
related?
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Answers
but show me the figure of analysis
Answers to the given questions are as follows:
a). The heat from the Earth's mantle convection currents makes the Earth's crust plastic and less dense, when tectonic plates slowly move away. This less dense material rises, as a result, forming mountains or elevated areas.
b). Excess of pressure and heat in the Earth makes the hot magma flow in the convection currents. These convection currents cause the movement of tectonic plates.
c). We know that air is a poor conductor that's why conduction mostly occurs at the surface of the earth. During the day, the sunlight heats the ground and the ground conducts the heat to the air by conduction.
d). Landforms such as mountains and volcanos are formed when two plates fold as a consequence of earthquakes or volcanic eruptions.
e). Subduction zone is where one plate is subducting or sinking beneath another plate. Earthquakes are caused in these regions because the plates slip on each other and rupture within plates.