TX Aquatic Science Ch. 3: Watersheds quiz

All the land that drains into a specific body of water is called a

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NGSS.MS-ESS2-4

A _____ _____ is the land drained by a river and it tributary streams.

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How many major river basins are in Texas?

• 3

• 12

• 10

• 15

The top of the water shed is known as the _______________. This is the high ground where precipitation first collects, or it can be a spring from which the stream originates.

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A stream that flows all year long is know as a _________ stream

• annual

• perennial

• intermittent

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What river basin does Victoria located in?

• Red River Basin

• Lavaca-Guadalupe Costal Basin

• Brazos-Colorado Costal Basin

• Guadalupe River Basin

True or False: Somethings that happen on the land in a watershed affects the water body in which it drains

• True

• False

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Pollution that comes from a single source that people can identify is know as ​ (a)   source pollution. Pollution that comes from many sources is know as ​ (b)   source polution.

• point
• nonpoint

What is the biggest water pollutant?

• Excess bacteria

• sediment

• pesticides

• Sewage

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How does excess sediment harm aquatic ecosystems?

• Blocks out light that kills aquatic plants

• Smothers Fish by clogging their gills

• Increases photosynthesis

• Increases bacteria in the water

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