Weathering and Erosion Basics

What causes weathering in rocks?

• Weathering is caused solely by temperature changes.

• Weathering is a result of volcanic eruptions.

• Weathering occurs only due to human activities.

• Weathering in rocks is caused by physical, chemical, and biological processes.

How do desert winds affect rocks?

• Desert winds erode rocks through abrasion and transport of particles.

• Desert winds cool rocks and prevent erosion.

• Desert winds create rocks through sedimentation.

• Desert winds have no effect on rocks at all.

What happens to small rocks carried by the wind?

• Small rocks are transported by the wind and can cause erosion before settling in new locations.

• Small rocks are used to create wind energy.

• Small rocks dissolve in water and become sand.

• Small rocks are only found in mountainous regions.

What do big rocks turn into after a long time?

• Sedimentary rocks or soil

• Metamorphic rocks

• Igneous rocks

• Crystals

How does gravity contribute to weathering?

• Gravity has no effect on weathering processes.

• Gravity contributes to weathering by facilitating the movement of materials and influencing erosion processes.

• Gravity only influences temperature changes in the atmosphere.

• Gravity prevents the movement of materials in the environment.

What happens to rocks when they fall?

• Rocks can break apart or shatter when they fall.

• Rocks become molten lava when they fall.

• Rocks turn into dust immediately upon impact.

• Rocks float on water when they fall.

How does ice cause weathering?

• Ice melts and causes erosion by washing away soil.

• Ice causes weathering by expanding in cracks when it freezes, leading to rock fragmentation.

• Ice creates heat that strengthens rocks.

• Ice has no effect on weathering processes.

What happens to water when it freezes?

• Water contracts and becomes denser when it freezes.

• Water evaporates completely when it freezes.

• Water turns into steam when it freezes.

• Water expands and forms ice when it freezes.

What do tiny grains of sand become in the desert?

• Rock formations

• Oases

• Cacti

• Sand dunes

Can wind and water both cause weathering?

• Weathering is caused solely by temperature changes.

• Only water can cause weathering.

• Wind does not contribute to weathering.

• Yes, both wind and water can cause weathering.