Human Impact: Watershed

The use of pesticides and fertilizers must be carefully monitored 
because of the effect they can have on the environment. 
Which of the following is a possible negative effect of the use 
of these chemicals on the environment?

• Runoff carries these chemicals into lakes and streams.
• Theses chemicals cannot be purchased in large bulk.
• 
  These chemicals are expensive to produce.
  
• Storage space for these chemicals is limited.

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What is a watershed?

• Land that collects and channels water froma small body of water to a larger body of water
• the shape of the land determined by elevation
• A natural stream of water of considerable  volume
• a river and all its tributaries

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Why is gravity a factor in watersheds? 

• it causes the water to flow away from a watershed
• it causes the water to flow down towards a watershed

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What is a watershed?

• Water in an area
• Water that flows into a river or stream
• Land that water flows over and through
• Water that is salty

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What is all the water that runs off the surface of the land and washes into rivers, streams, and other waterways called?

• Runoff
• Storm Drain
• Surface Water
• Tributary

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The health of an ecosystem is directly related to the:

• Air quality
• Amount of animals in the area
• Water quality
• Amount of food in the area

Tags

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Overflow during a heavy rainstorm from a wastewater treatment plan would result in what?

• polluted runoff into nearby ponds
• flooding in the local aquifer
• weakened housing foundations
• over-treated drinking water

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NGSS.MS-LS2-4

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Runoff from agricultural land carries chemicals from fertilizers and can eventually cause what? 

• aquatic life to die
• result in subsidence
• change the flow of natural waterways
• a drought to occur

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Pollutants from a factory that enters the water in a watershed will have negative effect on which?

• local pond life
• rainfall rates
• direction of river flow
• available space for crops

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Rapid growth of algae in a pond is a result of what?

• loss of habitat
• flooding
• excess nutrients from fertilizer runoff
• clogged river tributaries

Tags

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