Science

SECTION 1.—Select the correct answer.

Section1: Streams

Multiple Choice---Circle or check the correct answer for each question.

  1. What is runoff?
  2. Top of Form
  1. water that forms a glacier
  2. water in the ocean
  3. water that falls as snow
  4. water that flows off the land after a rain
  1. Where does the water in rivers and streams mostly come from?
  1. Rain
  2. the ocean
  3. Lakes
  4. melting glaciers
  1. A meandering stream has ______.
  1. few curves
  2. a narrow stream bed
  3. no known source
  4. many curves
  1. Where is sediment deposited in a meandering stream?
  1. outside the bend
  2. inside the bend
  3. in the center
  4. at the mouth
  1. What separates drainage basins?
  1. Mountains
  2. Valleys
  3. Divides
  4. Streams
  1. Streams form ______valleys.
  1. U-shaped
  2. W-shaped
  3. V-shaped
  4. X-shaped

6. Sediment that is too large to be carried in streams is called a ______load.

a. Suspended b. Dissolved

c. Bed d. Heavy

7. Streams drop their loads when they lose ______.

a. Heat

b. Slope

c. Water

d. Energy

8. Alluvial fans form on ______.

a. Water

b. Deltas

c. streambeds

d. Land

9. ----- A stream channel has a maximum distribution of 100 m3/in2. What happens when 150 m3/in2 flows through the channel?

  1. the stream channel expands
  2. the stream floods
  3. -the stream dries up
  4. the stream erodes to meet the flow

10. What is not a way to control flooding?

  1. build levees
  2. build dams
  3. alter a stream channel
  4. stop rivers

Section2: Lakes and Reservoirs

  1. What formed the Great Lakes?
  2. Construction workers
  3. Uplift
  4. Glaciers
  5. volcanoes
  6. How can the movement of Earth's crust form a lake?
  1. It could dissolve a lake bed.
  2. It could form a depression that fills with water.
  3. It could uplift the rock.
  4. It could split open.
  1. When a dam blocks the flow of a river, what happens?
  1. It dries up the river.
  2. The river moves around it.
  3. It forms a reservoir.
  4. The sediment in the river drops.
  1. What organisms live in all parts of a lake?
  1. Frogs
  2. Single-celled organism
  3. Birds
  4. fish
  1. A lake has filled up and become dry land. What caused this?
  1. The Sun
  2. A hole in the bottom of the lake
  3. Sediment from runoff
  4. Rainwater
  1. When water in a lake mixes due to changing seasons, this is called ______.
  1. Convection
  2. Seasonal mixing
  3. Turnover
  4. blending

Section3: Wetlands

  1. What is a requirement for an area to be a wetland?
  1. It must be covered with water throughout the year.
  2. It must contain lakes.
  3. It must keep water stored underground.
  4. It must be covered in water sometime during the year.
  1. A swamp that has cypress trees is called a ______.
  1. oak swamp
  2. cypress swamp
  3. tree swamp
  4. northern swamp
  1. A wetland has few trees and shrubs. This is a ______.
  1. Swamp
  2. Marsh
  3. Bog
  4. Pond
  1. What is an animal that lives in wetlands?
  1. Eagle
  2. Guana
  3. Beaver
  4. Wolf

Section4: Pollution of Freshwater

1.An example of point source pollution is ______.

a.automobile fluids washing off the roads and into a stream

b.fertilizer runoff from farms

c.landfills seeping into groundwater

d.dumping used motor oil into a stream

2. What type of pollution is easiest to stop?

a.point source

b.nonpoint source

c.runoff

d.industrial waste

3.When did the first use of legislation to stop water pollution occur?

a.1960s

b.1890s

c.1970s

d.1980s

4. How can you reduce nonpoint sources of pollution?

a.Keep driveways clean.

b.Make a compost heap.

c.Turn of the water when you brush your teeth.

d.Dispose of hazardous chemicals properly.

5.Which agency enforces the water pollution laws in the United States?

a.USGS

b.EPA

c.NASA

d.DOE

6.What is an alluvial fan?

a.coarse sediment deposited by a glacier

b.stream deposition into a body of water

c.stream deposition onto a flat plain

d.fine-grained sediment deposited by wind

7.According to the graph below, when is the oxygen concentration the highest?

  1. between sunset and midnight
  2. between noon and sunset
  3. between sunset and midnight
  4. between midnight and sunrise
  1. What is formed if the land on which a stream is located is uplifted?
  1. A delta
  2. A cut bank
  3. An alluvial fan
  4. A canyon
  1. Which process circulates nutrients at the bottom of a lake to the shallow areas and surface water?
  1. Eutrophication
  2. Turnover
  3. Discharge
  4. point source pollution
  1. Examine the graph below. Why might the oxygen concentration in the Colorado River vary in this way?
  1. When the Sun sets, plants use more oxygen and the concentration declines.
  2. When the Sun rises, plants begin to produce oxygen and the concentration increases until just after sunset.
  3. When the Sun rises, animals become more active and use more oxygen.
  4. When the Sun sets, animals become more active and use more oxygen
  1. Which day saw the highest discharge of the Neuse River?
  1. September 19
  2. September 23
  3. September 24
  4. September 18
  1. Which type of wetland doesn't have many trees and shrubs?
  1. Marshes
  2. Bogs
  3. oak swamp
  4. cypress swamp

1 | SB—Science Class—Chapter 15--SC-Science McGraw Hill -Glencoe—Science