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Unit 8: Watersheds and Human Activity

Total questions: 61

Worksheet time: 36mins

Name
Class
Date
1.
Watersheds are important because they
a)
prevent surface runoff
b)
increase the soils pore space
c)
removes salt from ocean water
d)
prevents floods and provides fresh water
2.
Fertilizer from people's yards is a point source pollution
a)
True
b)
False
3.
Rainwater running off a parking lot after a storm is point source pollution
a)
True
b)
False
4.
Overflow from a pipe at a sewage treatment plant is a point source pollution
a)
True
b)
False
5.
Which would increase the amount of runoff you get?
a)
Vegetation
b)
More plants
c)
Urban Development
6.
What do you call the land that water flows across, under, and through on its way to a body of water?
a)
Tributary
b)
River system
c)
Headwaters
d)
Watershed
7.
Biotic factors of a watershed are:
a)
Living
b)
Non-living
8.
What do you call an area of higher ground that separates watersheds?
a)
River
b)
Divide
c)
Tributary
d)
Flood Plain
9.
Which watershed do we live in?
a)
Edwards
b)
Trinity
c)
Colorado
d)
Brazos
10.
A layer of permeable rock that allows water to flow through.
a)
ground water
b)
aquifer
c)
subsidence
d)
point source
11.
Water that collects in cracks and pores in underground soil and rock layers.
a)
surface water
b)
ground water
c)
aquifer
d)
watershed
12.
An area of land where the surface water and ground water drain into a particular body of water.
a)
aquifer
b)
watershed
c)
subsidence
d)
divide
13.
The nonliving things in an ecosystem that affect it (such as water quality, soil, sunlight)
a)
biotic factors
b)
abiotic factors
c)
algae
d)
robots
14.
Define tributaries
a)
small rivers or streams that flow into a large river or stream
b)
a natural stream of water of considerable volume
c)
precipitation that flows over the land to streams
d)
a continuous ridge that separates a watershed
15.
Over the course of many years, a rural farm town becomes more urban. Which of the following will most likely happen in the town as a result of this urbanization?
a)
Light pollution in the town may decrease.
b)
Rivers may be contaminated by sewage.
c)
People will develop more farms in the town.
d)
The amount of rainfall will increase.
16.
In Texas, why is it dangerous if wastewater is emptied directly into local rivers, lakes, and bays?
a)
Wastewater can flow too quickly into the ocean and cause the sea level to rise.
b)
Wastewater can evaporate and cause air pollution.
c)
 Wastewater does not mix well with fresh water, so disrupts the flow of fresh water.
d)
Wastewater often contains contaminants that can kill aquatic organisms.
17.
Most water pollution is the result of __________________.
a)
natural processes
b)
animal waste
c)
human activities
d)
acid rain
18.
___________________ washes agricultural wastes, including animal wastes, fertilizers, and pesticides, into bodies of water, causing algae to grow.
a)
Runoff
b)
Peak flow
c)
Groundwater
d)
Municipal sewage
19.
Which soil conditions normally result in the greatest amount of runoff? 
a)
vegetation and steep slope
b)
no vegetation and steep slope
c)
vegetation and gentle slope
d)
no vegetation and gentle slope
20.
There are many different watersheds in the state of Texas.  The boundaries of a watershed are determined by
a)
number of people in the region
b)
the number of rivers
c)
height of the land
d)
type of weathering
21.
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?
a)
Runoff carries these chemicals into lakes and streams.
b)
Theses chemicals cannot be purchased in large bulk.
c)

These chemicals are expensive to produce.
d)
Storage space for these chemicals is limited.
22.
Surface runoff comes from...
a)
rivers and streams
b)
water that soaks into the ground
c)
reservoirs
d)
rain and melted snow
23.
Which measures the water's ability to flow through rock and sediment?
a)
fluidity
b)
viscosity
c)
porosity
d)
permeability
24.
What is the top of the water-filled spaces in the ground called?
a)
Groundwater
b)
Reservoir
c)
Water Table
d)
Well
25.
Which of the following has the lowest porosity?
a)
Clay
b)
Silt
c)
Gravel
d)
Sand
26.
Water flows through permeable materials ____________________ than impermeable materials.
a)
slower
b)
faster
27.

If a homeowner dumps paint into the yard, the paint will ________________________.

a)

stay on the surface and cause no problems

b)

sink into the ground a cause no problems

c)

contaminate groundwater and surface water

d)

contaminate the air when it evaporates

28.

The amount of water that becomes runoff is affected by ______________.

a)

the slope of the land

b)

how much vegetation is growing

c)

the amount of precipitation that falls

d)

all of these

29.

What type of landform causes a divide?

a)

plateau

b)

mountains

c)

plains

d)

coastlines

30.

The functions of a wetland include ______________.

a)

habitat for corals and sponges

b)

habitat for migratory birds

c)

hydroelectric power plants

d)

increasing erosion

31.

A layer of permeable rock that allows water to flow freely is a ___________.

a)

wetland

b)

cave

c)

spring

d)

aquifer

32.

The upper surface of the zone of saturation in groundwater is the ____________.

a)

water table

b)

well

c)

spring

d)

headwaters

33.

When groundwater reaches the surface a _________ may be visible.

a)

well

b)

spring

c)

aquifer

d)

delta

34.

A depression that forms when the roof of cave collapses is a ______________.

a)

lake

b)

divot

c)

river

d)

sinkhole

35.

Ground that allows rock to absorb water in the spaces between minerals is said to be ____________________.

a)

plastic

b)

spongy

c)

soggy

d)

permeable

36.

An area of land that is saturated with water for most or all of the year is a _______________.

a)

seep

b)

wetland

c)

cattail

d)

watershed

37.

Which of the following lakes is not in the Trinity watershed?

a)

Lake Ray Hubbard

b)

Lake Grapevine

c)

Lake Tahoe

d)

Lake Tawakoni

38.

Which of the following would not cause groundwater contamination?

a)

mulch

b)

oil spill

c)

pesticides

d)

batteries

39.

The sunlight that shines on glaciers and ice sheets is _________________________.

a)

absorbed into the surface

b)

reflected into space

c)

making the Earth warmer

d)

hotter than the surrounding oceans

40.

Alpine glaciers form only ________________.

a)

at polar regions

b)

on sea ice

c)

in mountain regions

d)

at the equator

41.

As the continental glaciers and ice sheets melt, global temperatures will ___________________.

a)

continue to decrease

b)

continue to rise

c)

become stable

d)

change the sun

42.

A great use of a floodplain is _____________.

a)

building expensive housing

b)

farm land

c)

electrical power plants

d)

manufacturing plants

43.

Water conservation is _________________.

a)

not important in Texas because it rains a lot

b)

only important in poor countries

c)

easy to do because we can just take water from another place

d)

an important concern for all countries and communities

44.

Surface water can be contaminated by which of the following?

a)

groundwater

b)

runoff

c)

sewage

d)

all of the above

45.
What is the type of water that moves underground?
a)
surface water
b)
water table
c)
groundwater
d)
watershed
46.
When bleach and other cleaners are poured down the drain and make their way into the water supply, which type of pollution as occurred?
a)
thermal pollution
b)
biological pollution
c)
thermal pollution
d)
chemical pollution
47.
Acids have a pH value less than 7. Which substance is the strongest acid?
a)
milk
b)
bleach
c)
seawater
d)
lemon juice
48.
Humans can cause different types of pollution. When fertilizers and pesticides make their way into water systems, which type of pollution has taken place?
a)
air
b)
thermal
c)
chemical
d)
biological
49.

All bodies of fresh water, salt water, ice, and snow that are found above ground

a)

Groundwater

b)

Surface water

c)

Runoff

d)

Swimming pool

50.

What occurs when used engine oil is poured into the pit in the ground?

a)

The oil remains sealed in the small disposal pit and does not affect the groundwater.

b)

The oil seeps through the soil until it leaks into the groundwater

c)

The oil seeps through the soil but stops before it reaches the groundwater

d)

The oil creates a barrier in Mrs. Dyess' room

51.

Fertilizer can seep through the ground to reach groundwater, what effect can it have?

a)

Fertilizer can cause groundwater to reverse flow

b)

Fertilizer can cause groundwater to freeze

c)

Fertilizer can cause groundwater to become undrinkable

d)

It will seep into the school

52.

Which of the following is the most likely cause of algal bloom?

a)

Humans dumped their trash directly into the pond, causing the water to become unclean

b)

A seasonal algal cycle caused the water to have too many organisms living in it

c)

Fertilizers from nearby fields drained into the pond, causing an excess of nutrients

d)

Acid rain transported pollution from nearby bodies of water through the water cycle.

53.

What does the red dye represent in the model?

a)

Surface water

b)

rainwate

c)

Dottie's water

d)

Pollution caused by humans.

54.
The land area that supplies water to a river system is called a
a)
water table
b)
trailer
c)
house
d)
watershed
55.
When fertilizers enter surface water, they cause problems in 
the watershed by -
a)
increasing the amount of nutrients available to fish in lakes and streams.
b)

clogging narrow streams and preventing water from flowing properly.
c)
raising the water level in nearby rivers to levels leading to flooding.
d)
causing rapid algal growth that decrease oxygen levels and choke aquatic life.
56.
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?
a)
Runoff carries these chemicals into lakes and streams.
b)
Theses chemicals cannot be purchased in large bulk.
c)

These chemicals are expensive to produce.
d)
Storage space for these chemicals is limited.
57.
______________ allows water to flow through the material.
a)
permeable rock
b)
impermeable rock
c)
subsidence
d)
groundwater
58.
____________ is a single identifiable and localized source of water pollution, such as wastewater discharge into a stream. 
a)
point source pollution
b)
non-point source pollution
59.
___________ are pollutants introduced into surface or groundwater that are without a specific location source, such as water flowing over a lawn that has been fertilized and into a drain.
a)
non-point source pollution
b)
point source pollution
60.
In a marsh ecosystem that experiences a hurricane, which of the following would be the most likely affect?
a)
A loss of plant life from saltwater brought in by the storm surge
b)
More burrowing animals live in the deeper soil layers
c)
Death of most organisms due to fires from lightning strikes
d)
Increase in diversity among organisms due to more competition
61.
A forest fire can have which of the following positive effects?
a)
Provides heat mammals need in colder seasons
b)
Increases annual rainfall by forming more clouds
c)
Clears underbrush to allow new plants to grow
d)
Drives away predators that eat smaller animals

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