Weathering quiz

Which of the following best describes weathering?

• The process by which rocks are exposed to severe weather

• The process by which rocks are formed by heat and pressure

• The mechanical or chemical process by which rocks are broken down

• The process by which rocks are chemically strengthened due to exposure to heat and pressure

Which is an example of oxidation?

• Rust decomposes rocks completely with the passage of time.

• Some of the minerals get dissolved in water.

• The joints enlarge in size and lime is removed in the solution.

• Due to the absorption of water by rocks, its volume increases.

Which of the following is an example of biological weathering?

• Freeze-thaw

• Wind blowing sand onto a rock

• Abrasion due to the movement of glaciers

• Plant that grows on the cracks of the rocks

What are the two things that affect the rate of weathering?

• rain and ice

• type of rock and climate

• time and date

• size of rock and time of the year

Which of the following best describes chemical weathering?

• The process by which rocks are broken down by physical forces

• The process by which rocks are broken down by chemical means

• The process by which rocks are broken down by anthropogenic activities

• all of these

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

The process that breaks down rocks and other materials on Earth's surface is called

• weathering
• erosion
• soil conservation
• decomposition

How does wind abrasion work?

• Sediment is blown off a surface from wind.
• Wind-blown sediment strikes a surface.
• Wind blows large chunks of rock off a surface.
• Sediment falls off of a surface on its own.

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.

The diagrams  shows a natural process that weathers rock.
 Which statement best explains why this process results in weathering?

• frozen water acts as a solute
• water expands when it freezes
• the mass of water increases when it freezes
• frozen water dissolves most types of rock