Changes on Earth

Describe the process of weathering.

• Weathering does not involve any breakdown of rocks.

• Weathering is the process of rock formation.

• Weathering only occurs due to physical processes.

• Weathering is the process where rocks and minerals are broken down into smaller pieces by physical, chemical, or biological processes.

What factors can change the land over time?

• Pollution, deforestation, climate change

• Tornadoes, hurricanes, floods

• Erosion, weathering, human activities, volcanic eruptions, tectonic movements

• Deforestation, mining, earthquakes

How are mountains formed through the process of folding?

• Tectonic plates collide, causing the Earth's crust to bend and buckle, resulting in uplifted mountain ranges.

• Mountains are the result of meteor impacts

• Mountains form due to volcanic eruptions

• Mountains are created by erosion wearing down the land

What type of rock is formed from the cooling of magma?

• Sedimentary

• Igneous

• Metamorphic

• Volcanic

Explain how erosion can shape the Earth's surface.

• Erosion shapes the Earth's surface by attracting wildlife to specific areas.

• Erosion shapes the Earth's surface by wearing away rocks and soil through the action of water, wind, or ice, and transporting sediment to create various landforms.

• Erosion shapes the Earth's surface by causing earthquakes and tsunamis.

• Erosion shapes the Earth's surface by creating new rocks and soil through volcanic activity.

What is the role of water in weathering processes?

• Water physically breaks down rocks through freeze-thaw cycles and chemically weathers rocks through dissolution and hydration.

• Water has no role in weathering processes

• Water only chemically weathers rocks through dissolution

• Water only physically breaks down rocks through freeze-thaw cycles

How do volcanic eruptions contribute to changes on Earth?

• Volcanic eruptions contribute to changes on Earth by causing global cooling

• Volcanic eruptions contribute to changes on Earth by reducing seismic activity

• Volcanic eruptions contribute to changes on Earth by promoting biodiversity

• Volcanic eruptions contribute to changes on Earth through the release of gases, ash, and creation of new landforms.

What is the difference between mechanical and chemical weathering?

• Chemical weathering breaks rocks physically

• Mechanical weathering changes rocks chemically

• Mechanical weathering only affects soft rocks

• Mechanical weathering breaks rocks physically, while chemical weathering changes rocks chemically.

Describe the process of sedimentation and how it affects landforms.

• Sedimentation is the process where eroded materials settle down due to gravity, forming layers that can create various landforms.

• Sedimentation is the result of earthquakes altering landforms

• Sedimentation occurs when wind blows away soil from landforms

• Sedimentation is the process of volcanic eruptions shaping landforms

How do glaciers contribute to the formation of valleys?

• Glaciers contribute to the formation of valleys by creating deserts in the region.

• Glaciers contribute to the formation of valleys by increasing the temperature of the surrounding land.

• Glaciers contribute to the formation of valleys by eroding and shaping the landscape as they move.

• Glaciers contribute to the formation of valleys by attracting wildlife to the area.