Rivers

The start of a river is called the what?

• River summit
• River source
• River start
• River mouth

A river starts very small before getting larger. What is the name given to a small river that joins a larger river?

• Confluence
• Tribunal
• Tributary
• Joiner

A waterfall is most likely to be found closer to what part of the river?

• River mouth
• River source

A waterfall is created because of ...

• the types of layers of rock
• the force of gravity
• deforestation
• deposition

What helps create Waterfalls?

• Abrasion
• Solution
• Silting
• Hydraulic Action

The area that contains a river system is called a what?

• Drain Bassoon
• Drainage Basinet
• Drainage Basin
• Drain Basalt

The high ground around a river where rain seldom falls is called the ...

• Mountains
• Watershed
• Drainage Basin
• Valley

There are four main types of erosion for rivers. Which answer is correct.

• Hydraulic Action, Attrition, Rubbing, Silting
• Hydraulic Action, Abrasion, Deposition, Solution
• Hydraulic Action, Abrasion, Silting, Solution
• Hydraulic Action, Solution, Abrasion, Attrition

Attrition is when ..

• large rocks smash against each other.
• small rocks rub against each other.
• sand and other fine particles float.
• water flows into the rocks.

Deposition is when ...

• Objects are moved along the river.
• Objects are dropped along the river.
• Objects are suspended in the water.
• Objects are move into the ocean.