7.8C Watersheds

There are several river process in a watershed, order this from largest to smallest.

• tributaries, rivers, river systems
• tributaries, river systems, rivers
• rivers, tributaries, river systems
• river systems, rivers, tributaries

What is the type of water that moves underground?

• surface water
• water table
• groundwater
• watershed

Tags

NGSS.MS-ESS2-4

Which of these most directly prevents erosion in a watershed?

• plant life
• soil type
• agricultural irrigation
• sediment transport

When bleach and other cleaners are poured down the drain and make their way into the water supply, which type of pollution as occurred?

• thermal pollution
• biological pollution
• thermal pollution
• chemical pollution

Tags

NGSS.MS-PS1-2

Acids have a pH value less than 7. Which substance is the strongest acid?

• milk
• bleach
• seawater
• lemon juice

Tags

NGSS.MS-PS1-2

What is the main purpose of digging a channel or building a dam on a river?

• to change the temperature of the water
• to accelerate the rate at which the soil erodes 
• to alter the flow of the river in a specific direction
• to change the pH of the water

Tags

NGSS.MS-ETS1-1

Humans can cause different types of pollution. When fertilizers and pesticides make their way into water systems, which type of pollution has taken place?

• air
• thermal
• chemical
• biological

Which of the following is a measure of the amount of open spaces between the particles of rock and soil?

• porosity
• permeability
• saturation
• precipitation

Based on the table, about how much water is available to provide habitat for wildlife?

Water source     Water volume (cubic miles)
Groundwater         5,614,000
Lakes                    42,320
Rivers                   509
Swamp water        2,752

• 43,000 cubic miles
• 46,000 cubic miles
• 6,000,000 cubic miles
• just over 3,000 cubic miles

The term potable is sometimes used to describe water. Which of these words has the same meaning as potable?

• turbidity
• drinkable
• contaminated
• acidic