Rivers & Groundwater

A(n) ____ is the triangular or fan-shaped deposit of sediment that forms where a river empties into an ocean or lake.

• alluvial fan

• delta

• meander

• drainage basin

When people remove vegetation, they ____ runoff and the erosion process.

• slow down

• speed up

• decrease

• do not affect

____ determines the amount of runoff.

• The amount of vegetation

• The amount of rain

• Topography

• Salinity of the water

A(n) ____ is a layer of permeable rock that lets water move freely.

• cave

• water table

• aquifer

• spring

A water shed is...

• a tiny building on a river

• a floodplain

• the deposition of sediments when a stream empties onto dry land

• the land area from which a stream gets its water

Sediments that have many large, interconnected pores is highly...

• permeable

• impermeable

• eroded

• all of these

Which of the following are features of a well-developed old age river system?

• meanders and a sandy bottom

• narrow v-shaped valley

• rapids & high energy

• rocky bottom

Material rolled along the bottom of a stream is...

• suspended load

• bed load

• dissolved load

• dregs

A common process of agents of erosion which involves the scraping of sediments against each other is...

• abrasion

• ice wedging

• striations

• deflation

High ground that separates drainage basins is called

• separators

• divides

• drainage peaks

• loginverisifiers