The Pacific tectonic plate and the South American tectonic plate are slowly moving away from each other. Over thousands of years, which of the following natural structures might be formed at this plate boundary? (1 point)
Responses
A mountain, which is a structure formed due to magma coming out of the mantle and hardening.
A mountain, which is a structure formed due to magma coming out of the mantle and hardening.
A volcano, which is a structure formed due to two tectonic plates colliding and pushing upwards.
A volcano, which is a structure formed due to two tectonic plates colliding and pushing upwards.
A ridge, which is a structure formed due to magma coming out of the mantle and hardening.
A ridge, which is a structure formed due to magma coming out of the mantle and hardening.
A fault, which is a structure formed due to two tectonic plates colliding and pushing upwards.
A ridge, which is a structure formed due to magma coming out of the mantle and hardening.
Which example shows the effects of tension in the Earth’s plates?(1 point)
Responses
Eurasian plate forming the Himalayas
Eurasian plate forming the Himalayas
an earthquake along the San Andreas Fault
an earthquake along the San Andreas Fault
Andes Mountains forming by subduction
Andes Mountains forming by subduction
the mid-Atlantic Ridge splitting Iceland
the mid-Atlantic Ridge splitting Iceland
Use the map of the Ring of Fire to answer the question.
A map of the world shows the continents as well as a line that represents the equator which is a line that divides the map in two horizontally. Possible locations of earthquakes and volcanic eruptions are denoted on the map as dots for earthquakes and triangles for volcanoes. The Pacific Ocean is in the center of the map. An almost complete circle of volcanoes begins near Austrailia, Goes northwest along the islands of Papua New Guinea and the Phillipines, turns northward along japan, turns eastward across the Pacific Ocean, turns south east along the western coast of the United States, then finally heads south along the western coast of South America. The earthquakes form a web of crving lines that snake their way between continents and through oceans.
Which is correct about the Ring of Fire shown on the map?
(1 point)
Responses
Volcanoes are found on its rim.
Volcanoes are found on its rim.
It represents locations where plate movement does not occur.
It represents locations where plate movement does not occur.
Earthquakes occur far from its rim.
Earthquakes occur far from its rim.
It is located around the rim of the Atlantic Ocean.
Volcanoes are found on its rim.
Which describes a positive impact of volcanoes?(1 point)
Responses
They contribute to the reduction of land on the surface.
They contribute to the reduction of land on the surface.
They produce new gases that form part of the atmosphere.
They produce new gases that form part of the atmosphere.
They carry magma that covers a large surface area of the Earth.
They carry magma that covers a large surface area of the Earth.
They release materials that form fertile soils.