Watersheds and Pollution

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.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

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

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

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

Tags

NGSS.MS-ESS2-4

What is Point Source Pollution (PSP) ?

• When you cannot trace the direct source of pollution
• When you can trace the point of the source - "pipe to source"

A industrial powerplant dumps its heated wastewater straight from a pipe into a stream. This is an example of -

• eutrophic pollution
  over-treated drinking water.
• riparian pollution
  flooding in the local aquifer.
• point source pollution.
• nonpointsource pollution.

What is it called when creeks and smaller rivers join together to make a larger river?

• River Systems

• Topography

• Watershed

• Groundwater

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

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Abiotic means: 

• Living
• Dead
• Non-living
• Water

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Biotic means:

• Living
• Non-living
• Man made
• Found in nature

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-4

What is an area of higher elevation that separates watersheds?

• Estuary
• Divide
• Wetland
• Transition zones