Topic 5 Lesson 1 Test

________________ states that the Earth's geological processes (Seafloor Spreading, Continental Drift, Erosion) have happened at the same rate.

• Uniformitarianism
• Catastrophism
• Gradualism
• Law of Superposition

Check all examples of uniformitarianism

• erosion

• weathering

• tectonic plate movement

• deposition

• volcanic eruption

What type of changes does erosion cause?

• Physical changes

• Chemical changes

• Electrical changes

• Magnetic changes

What happens when weathering and erosion work together?

• New Mountains are created
• The climate changes overnight
• Metal objects become rusty
• They change the Earth's surface

What is the major cause of weathering and erosion to form canyons?

• wind
• ice
• glaciers
• moving water

How do plants weather rocks?

• during photosynthesis
• when roots grow into cracks of rocks and expand the rock
• when the plant moves water from the roots to the leaves
• Plants don't weather rocks

Which agents  break down earth materials?

• wind only
• earthquakes and gravity
• ice and 007
• wind, water, and ice

fossil fuels react with water producing acid rain that wears minerals away in the rock

• chemical weathering
• mechanical weathering
• erosion
• deposition

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

What is mechanical weathering?

• Process through which rocks are physically broken into smaller pieces.
• Rocks are broken down through chemical changes.
• Rocks are worn away from acid in plant roots.
• Rocks broken down by machinery.