At the border of the South American and Nazca plate, there is a long and large mountain range called the Andes. Why did these mountains form? (1 point)
• These mountains formed due to a divergent boundary.
• These mountains formed due to a transform boundary.
• These mountains formed due to a convergent boundary.
• These mountains formed due to a still boundary.
These mountains formed due to a convergent boundary.
Two tectonic plates move away from each other, causing lava to spew out of the ground and harden.
Andes Mountains
The heat from Earth's core moves molten rock beneath the plates.
Earthquakes normally occur at the edges of tectonic plates.
As plant roots in cracks of rocks grow, the crack grows as well.
Which statement best describes how a ridge forms? (1 point)
• Two tectonic plates move towards each other, causing one plate to slip under the other.
• Two tectonic plates move away from each other, causing them to push up against each other.
• Two tectonic plates move away from each other, causing lava to spew out of the ground and harden.
• Two tectonic plates move towards each other, causing a sudden drop in the ocean floor that can be miles deep.
Which feature is formed at convergent plate boundaries? (1 point)
• San Andreas Fault
O mid-Atlantic Ridge
• Andes Mountains
• East African Rift Valley
Why do tectonic plates on Earth's surface move? (1 point)
• The heat from Earth's core moves molten rock beneath the plates.
• The pressure from the ground pushes the plates apart.
• The iron blocks in Earth's core collide and move the plates.
• The plates are surrounded by bodies of water that push the plates.
Where do earthquakes normally occur? (1 point)
• at the edges of tectonic plates
• at the center of Earth's core
• at the edges of Earth's bodies of water
• at the center of tectonic plates