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Watersheds Review

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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.

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Question 1
1.

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

  • Snails/insects
  • Water
  • Protozoa/Bacteria/Plankton
  • Air
  • Sun/sun's heat
  • Mushrooms
  • Dirt/Soil
  • Grass/Trees/Lily Pads
  • Abiotic
  • Biotic
Question 2
2.

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
Question 3
3.

What divides a watershed or drainage basin?

Question 4
4.

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

  1. water flows over the ­land and infiltrates through dirt/soils
  2. recharging/refilling the groundwater supplies
  3. drain­ing into nearby bayous, streams, or rivers.
Question 5
5.

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

Question 6
6.

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

Question 7
7.

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
Question 8
8.

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

  • Build more roads and parking lots
  • Plant more trees and stop cutting them down
  • Make more green spaces permeable areas
  • Make canal systems that have a lof of winding curves that can easily become cluttered with debris.
  • Put in more parks with grasses and trees
  • Make more impermeable areas.
  • Do not build homes in a floodplain
  • Build retention ponds
  • Do not clean out storm drains
  • More Flooding
  • Less Flooding
Question 9
9.

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

Question 10
10.

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

Question 11
11.

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

Question 12
12.

Taking samples of macroinvertebrates is chemical testing.

Question 13
13.

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

Question 14
14.

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

Question 15
15.

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