The Lithosphere-1

What is the theory of plate tectonics?

• The theory of plate tectonics explains the movement of the Earth's lithosphere, which is divided into several large and small plates that float on the semi-fluid asthenosphere beneath them.

• The theory of plate tectonics suggests that the Earth's crust is stationary and does not move over time.

• The theory of plate tectonics explains the movement of the Earth's atmosphere and its impact on weather patterns.

• The theory of plate tectonics is based on the idea that the Earth is flat and supported by giant plates.

• The theory of the earth and its core, which explains how the process of occurrence and formation of our earth from the time of the formation of the solar system to the emergence of life on it.

Explain the process of seafloor spreading.

• Seafloor spreading is caused by the gravitational pull of the moon

• Seafloor spreading is a result of erosion from ocean currents

• Seafloor spreading is a process of the ocean floor sinking into the mantle

• Seafloor spreading is the process by which new oceanic crust is formed through volcanic activity and then gradually moves away from the mid-ocean ridges, creating new seafloor as it spreads. This process is driven by the upwelling of magma from the mantle at the mid-ocean ridges, and it plays a key role in the theory of plate tectonics.

• The seabed moves in all directions due to the rotation of the earth on its axis. Tectonic and volcanic activity also affects the shape of the seabed surface.

What is the difference between convergent and divergent plate boundaries?

• Convergent plate boundaries move towards each other, while divergent plate boundaries move away from each other.

• Divergent plate boundaries are stationary

• Convergent plate boundaries move away from each other

• Convergent plate boundaries move in the same direction

• The difference is in the timing, as the divergent and convergent processes are in different directions of motion. One of them moves faster

How do transform plate boundaries contribute to plate tectonics?

• Transform plate boundaries contribute to plate tectonics by allowing the movement of tectonic plates past each other, which can result in earthquakes and the formation of new crust.

• Transform plate boundaries contribute to plate tectonics by preventing the movement of tectonic plates

• Transform plate boundaries contribute to plate tectonics by creating new mountain ranges

• Transform plate boundaries contribute to plate tectonics by causing volcanic eruptions

• Plate boundaries where moving plates meet. Collision, friction and separation form the Earth's surface and always give rise to symptoms of volcanism.

What are the major tectonic plates that make up the Earth's lithosphere?

• The Europe Plate, Asia Plate, Australia Plate, South Pole Plate

• The Moon Plate, Atlantic Plate, Indian Plate, Arctic Plate

• The major tectonic plates that make up the Earth's lithosphere are the Pacific Plate, North American Plate, Eurasian Plate, African Plate, Antarctic Plate, Indo-Australian Plate, and South American Plate.

• The Mars Plate, Atlantic Plate, Indian Plate, Arctic Plate

• Many of the world's major plates are located in the northern hemisphere. These plates form the continents and oceans.

Describe the concept of subduction in the context of plate tectonics.

• Subduction is the process where tectonic plates move away from each other at a divergent boundary.

• Subduction is the process where tectonic plates slide past each other at a transform boundary.

• Subduction is the process where tectonic plates remain stationary at a conservative boundary.

• Subduction is the process where one tectonic plate moves under another tectonic plate at a convergent boundary. This process is responsible for the formation of deep ocean trenches and volcanic arcs.

• subduction is the process of plates moving away from each other and forming chasms and dividing the Earth's surface.

What evidence supports the theory of plate tectonics?

• The behavior of ocean currents

• The evidence supporting the theory of plate tectonics includes the matching coastlines of continents, the distribution of earthquakes and volcanoes, and the magnetic striping on the ocean floor.

• The distribution of clouds in the atmosphere

• The theory of plate tectonics is not supported by any evidence

• evidenced by similarities in climate, animals and regional characteristics in several places on earth

Explain the role of convection currents in the movement of tectonic plates.

• Convection currents have no role in the movement of tectonic plates

• The movement of tectonic plates is caused by the rotation of the Earth

• Convection currents in the mantle drive the movement of tectonic plates by causing the plates to move apart at mid-ocean ridges and collide at subduction zones.

• Tectonic plates move due to the gravitational pull of the Earth's core

• convection currents push in all directions and spread the hot magma. This symptom forms the emergence of volcanic activity.

How does the theory of plate tectonics explain the occurrence of earthquakes and volcanic activity?

• Plate tectonics theory explains that earthquakes and volcanic activity occur due to the movement and interaction of tectonic plates. Earthquakes happen when the plates grind or slip past each other, while volcanic activity occurs when magma from the mantle rises to the surface through the movement of tectonic plates.

• Earthquakes and volcanic activity are caused by the alignment of the planets

• The occurrence of earthquakes and volcanic activity is purely random and not related to plate tectonics

• Earthquakes occur due to the rotation of the Earth, while volcanic activity is caused by underground explosions

• Plate movement activities shape the Earth's surface into mountains, rifts, valleys, seas. Various volcanic eruptive activities are also due to these plate shifts

What is the primary process responsible for transforming igneous rocks into sedimentary rocks in the Rock Cycle?

• A) Erosion

• B) Weathering

• C) Melting

• D) Deposition

• E) Crystallization