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Watersheds Review

Last updated over 2 years ago
15 questions
Note from the author:
Instructions: Review the Watersheds PPT and Flooding PPT. You may use your pollution notes from Tuesday to help as well. Then, answer the questions below.

Instructions: Review the Watersheds PPT and Flooding PPT. You may use your pollution notes from Tuesday to help as well. Then, answer the questions below.

1

Look at the picture of an ecosysems. Which things are biotic and which are abiotic?

  • Air
  • Dirt/Soil
  • Snails/insects
  • Grass/Trees/Lily Pads
  • Mushrooms
  • Water
  • Protozoa/Bacteria/Plankton
  • Sun/sun's heat
  • Abiotic
  • Biotic
1

What is the difference between a drainage basin and a watershed?

  • all the things in it that affect water bodies in a given drainage basin
  • an area of land in which water, sediments, and dissolved materials are transported or drained into a common outlet
  • climate, amount of rainfall,
  • geology and geography of an area (rocks, soil, hills, lowlands, forests), and human ac
  • human activies (urban and industrial devel­opment, agriculture)
  • Drainage Basin
  • Watershed
1

What divides a watershed or drainage basin?

1

When it rains in a watershed, what can happen to the water? Place these into the correct order.

  1. recharging/refilling the groundwater supplies
  2. drain­ing into nearby bayous, streams, or rivers.
  3. water flows over the ­land and infiltrates through dirt/soils
1

What happens if you spill gasoline in your driveway or leave dog poop in your yard?

1

What will have the LARGEST effect on the quaity of water in a bayou, stream or river?

1

What is the difference between urban city and rural country in watershed infiltration?

  • High number of impervious surfaces such as concrete that doesn't allow infiltration
  • Low number of impervious surfaces such as concrete that does allow infiltration
  • Less green space/less trees and plants to suck up water
  • More green space/more trees and plants to suck up water and slow water movement
  • Lots of soil infiltration to filter out pollutants so less pollutants in water supply
  • Very little soil infiltration to filter out pollutants so more pollutants in water supply
  • more surface runnoff and flooding and erosion
  • less surface runnoff aflooding and eroision
  • 1/2 (50%) of all rainfall infiltrates into the soil to become groundwater
  • 1/3 (33%) of all rainfall infiltrates into the soil to become groundwater
  • City/Urban
  • Natural/Rural/Country
1

What effect would these things have on the flooding problem in Houston?

  • Do not clean out storm drains
  • Make more impermeable areas.
  • Build retention ponds
  • Make canal systems that have a lof of winding curves that can easily become cluttered with debris.
  • Build more roads and parking lots
  • Plant more trees and stop cutting them down
  • Make more green spaces permeable areas
  • Put in more parks with grasses and trees
  • Do not build homes in a floodplain
  • More Flooding
  • Less Flooding
1

What are 5 ways that water can enter a stream? (Gaining Stream)

1

What are 5 ways that water can leave a stream? (Losing Stream)

1

The presence of macroinvertebrates that are intolerant to pollution in a stream indicates that the stream is healthy.

1

Taking samples of macroinvertebrates is chemical testing.

1

Pointsource pollution in which it is easier to identify the source.

1

Nonpoint source pollution enters streams and bodies of water by surface runoff and flooding.

1

Dams are only able to increase the level of a stream.