Question

which of the following would you expect to find at a continental - continental convergent boundary?
a series of volcanoes created over a hotspot like the hawaiian islands
a rift valley like the east african rift valley
a string of volcanic islands like the aleutian islands in alaska
a mid - ocean volcanic ridge like in the center of the atlantic ocean
a deep ocean trench like the mariana trench
high elevation mountains and plateaus like the himalayas and tibetan plateau
2 multiple choice 2 points
according to lecture and the assigned film on plate tectonics, which of the following cannot be explained by the theory of plate tectonics?
the cold water off the coast of california
yellowstone national park
the geography of skyscrapers in new york city
the aleutian islands in alaska
3 multiple choice 2 points
when an oceanic plate and a continental plate collide, which will subduct and why?
neither because they have the same density
oceanic plate because it is denser
both because the asthenosphere is soft
continental plate because it is thicker
4 true or false 2 points
volcanoes do not develop along convergent plate boundaries.
true
false

Explanation:

• Question 1: Continental - continental convergent boundaries result in the formation of high - elevation mountains and plateaus due to the collision and uplift of two continental plates. Hotspots (like Hawaiian Islands) are not related to convergent boundaries. Rift valleys (East African Rift Valley) are formed at divergent boundaries. Volcanic islands (Aleutian Islands) are formed at oceanic - continental convergent boundaries. Mid - ocean ridges (Atlantic Ocean) are at divergent boundaries. Deep ocean trenches (Mariana Trench) are at oceanic - oceanic or oceanic - continental convergent boundaries.
• Question 2: The Theory of Plate Tectonics explains geological features related to plate movements. The cold water off California can be related to ocean currents influenced by plate - related upwelling. Yellowstone is related to a hotspot (which can be considered in the context of plate movement over a stationary magma source). The Aleutian Islands are formed at a convergent boundary. The geography of skyscrapers in New York City is a human - made (architectural and urban planning) feature, not related to plate tectonics.
• Question 3: Oceanic plates are denser than continental plates. When they collide, the denser oceanic plate subducts (dives below) the continental plate.
• Question 4: Volcanoes do develop along convergent plate boundaries. At oceanic - continental convergent boundaries, the subducting oceanic plate melts, and the magma rises to form volcanoes. At oceanic - oceanic convergent boundaries, similar processes occur to form volcanic island arcs.

Answer:

1. high elevation mountains and plateaus like the Himalayas and Tibetan Plateau
2. the geography of skyscrapers in New York City
3. oceanic plate because it is denser
4. False