Quiz about ESS.8.3.1/8.3.2

Question 1

What is "potable" water

Accepted Answer

Water that is safe for drinking

Answer

Water you can transport

Answer

Water you can sell

Answer

Water that comes from the ocean

Question 2

What is "potable" water

Accepted Answer

Water that is safe for drinking

Answer

Water you can transport

Answer

Water you can sell

Answer

Water that comes from the ocean

Question 3

Temperature has nothing to do with water quality

Accepted Answer

False

Answer

True

Question 4

A healthy water system has _______ levels of dissolved oxygen.

Accepted Answer

High

Answer

No

Answer

Low

Answer

Blue

Question 5

As the temperature of water increases, the amount of dissolved oxygen _________

Accepted Answer

Decreases

Answer

Increases

Answer

does not change

Answer

None of these

Question 6

The scale for determining how acidic or basic water is.

Accepted Answer

pH

Answer

Temperature

Answer

Dissolved Oxygen

Answer

Degrees

Question 7

The idea pH for water is

Accepted Answer

Neutral

Answer

1

Answer

Positive

Answer

14

Question 8

A measure of how clear water is, is known as

Accepted Answer

Turbidity

Answer

pH

Answer

Dissolved Oxygen

Answer

Temperature

Question 9

Healthy water has low turbidity.

Accepted Answer

True

Answer

False

Question 10

Bioindicators

Accepted Answer

indicate the health of a water ecosystem

Answer

are harmful

Answer

are areas of great biological diverstiy

Answer

None of these

Question 11

Bio-indicators

Accepted Answer

An organism used to monitor the health of an ecosystem.

Answer

A measure of how acidic or how basic a liquid is

Answer

a chemical that includes nitrogen and oxygen, often used as a fertilizer

Question 12

Nitrate

Accepted Answer

a chemical that includes nitrogen and oxygen, often used as a fertilizer

Answer

A fertilizer containing phosphorus compounds

Answer

Too many nutrients in a body of water frequently due to runoff from the land. It causes a dense growth of plant life and death of animal life from lack of oxygen. (It can cause algal bloom.)

Question 13

Phosphate

Accepted Answer

A fertilizer containing phosphorus compounds

Answer

a chemical that includes nitrogen and oxygen, often used as a fertilizer

Answer

A measure of how clear water is

Question 14

Eutrophication

Accepted Answer

Too many nutrients in a body of water frequently due to runoff from the land. It causes a dense growth of plant life and death of animal life from lack of oxygen. (It can cause algal bloom.)

Answer

An organism used to monitor the health of an ecosystem.

Answer

amount of oxygen that is present in the water

Question 15

Dissolved oxygen

Accepted Answer

amount of oxygen that is present in the water

Answer

A measure of how clear water is

Answer

A fertilizer containing phosphorus compounds

Question 16

Factors that affect dissolved oxygen include

Accepted Answer

temperature and stream flow.

Answer

lack of fish and amphibians.

Answer

the amount of carbon dioxide.

Answer

Non of the above.

Question 17

pH value of less than 7 is considered to be

Accepted Answer

acidic.

Answer

polluted.

Answer

basic.

Answer

like drain cleaner.

Question 18

pH greater than 7 is considered to be

Accepted Answer

basic.

Answer

neutral.

Answer

acidic.

Answer

polluted.

Question 19

Temperature of the water impacts

Accepted Answer

all of the above

Answer

what kind of organisms can live in rivers, creeks and lakes.

Answer

the amount of dissolved oxygen.

Answer

the amount of minerals dissolved in the water.

Question 20

A body of water that has high turbidity is ...

Accepted Answer

cloudy

Answer

clear

Question 21

Which of the following are indicators of healthy water systems?

Accepted Answer

low temperatures, high dissolved oxygen, and neutral pH

Answer

high nitrates, high pH, and low temperatures

Question 22

What is the possible effect of high nitrate level in water systems?

Accepted Answer

algal bloom

Answer

fewer algae

Question 23

If a body of water has high turbidity levels, what can most likely be concluded?

Accepted Answer

It is unsafe to drink

Answer

It contains a lot of chemicals

Question 24

An algae bloom in a water system is most likely caused by

Accepted Answer

large amounts of nitrates in runoff

Answer

high oxygen levels in the water

Question 25

What kind of pollution could cause low pH in a lake?

Accepted Answer

acid rain

Answer

fertilizer runoff

Question 26

Pure water is neutral. If water is neither an acid nor a base, what is the pH of water?

Accepted Answer

7

Answer

0

Answer

10

Question 27

Which best describes the relationship between temperature and dissolved oxygen in a lake?

Accepted Answer

As temperature increases, dissolved oxygen decreases.

Answer

As temperature increases, dissolved oxygen increases.

Answer

As temperature decreases, dissolved oxygen decreases.

Answer

A change in temperature has no effect on dissolved oxygen.

Question 28

What does pH measure?

Accepted Answer

acidity/alkalinity

Answer

dissolved oxygen

Answer

nutrient level

Answer

turbidity

Question 29

Which would be the most likely cause of large numbers of fish dying in a stream?

Accepted Answer

low dissolved oxygen concentration

Answer

a lack of nitrogen

Answer

high levels of mercury

Answer

decreased carbon dioxide

Question 30

Which factors can have the greatest effect on the health of a river system?

Accepted Answer

nitrate levels and turbidity

Answer

type of soil and salinity

Answer

human consumption and pH

Answer

natural disasters and tidal change

Question 31

Which best determines the health of a lake used as a source of freshwater?

Accepted Answer

its temperature and pH

Answer

its depth and width

Answer

its location and depth

Answer

its temperature and depth

Question 32

If a body of water has high turbidity levels, what can most likely be concluded?

Accepted Answer

It is unsafe to drink

Answer

It has a low pH

Answer

It is too hot to drink

Answer

It contains lots of chemicals

Question 33

Which will occur if humans continue to overload water systems with excess nutrients?

Accepted Answer

eutrophication

Answer

chemosynthesis

Answer

nitrification

Answer

photosynthesis

Question 34

Which does an increase in eutrophication indicate to scientists studying a body of water?

Accepted Answer

an increase in fertilizer runoff

Answer

a decrease in pollutants from farm runoff

Answer

an increase in the health of the body of water

Answer

an increase in oxygen levels in the body of water

Question 35

Which aspect of fertilizer pollution would have the greatest negative impact on an aquatic ecosystem?

Accepted Answer

Algal blooms deplete the oxygen and block the sunlight from penetrating a body of water.

Answer

Nitrates poison the water that fish breathe through their gills.

Answer

Microorganisms in the water absorb all the oxygen, suffocating animals.

Answer

Aquatic animals increase, adding producers to the food chain and feeding fish.

Question 36

Which groundwater contaminant contained in fertilizers and pesticides comes from farms?

Accepted Answer

nitrates

Answer

bacteria

Answer

mercury

Answer

sodium

Question 37

Which would most affect the health of fish in a local pond?

Accepted Answer

The daily release of hot water into the pond from a local factory.

Answer

A storm temporarily stirring up water and sediments in the pond.

Answer

The occasional erosion of sediments into the pond from a nearby field.

Answer

A slight increase in the number of people who fish in the pond for food.

Question 38

Which chemical elements in fertilizers pollute stormwater runoff and contribute to excessive plant growth in a water system?

Accepted Answer

phosphorus and nitrogen

Answer

iron and lead

Answer

copper and zinc

Answer

calcium and magnesium

Question 39

Which is a bioindicator?

Accepted Answer

insect

Answer

current

Answer

rock

Answer

water

Question 40

Why do biologists use indicator species?

Accepted Answer

to monitor water quality and biodiversity

Answer

to compare freshwater and ocean ecosystems

Answer

to count the number of organisms present

Answer

to analyze the dominant species

Question 41

Which process would most likely increase the dissolved oxygen level in a freshwater lake?

Accepted Answer

photosynthesis

Answer

algal bloom

Answer

lake turnover

Answer

respiration

Question 42

Which is the best example of a point source pollution?

Accepted Answer

oil spill from a boat on the Atlantic Ocean

Answer

runoff from fields

Answer

pesticides sprayed into the air

Answer

smoke from multiple industries in a large city

Question 43

Which best describes the relationship between temperature and dissolved oxygen in a lake?

Accepted Answer

As temperature increases, dissolved oxygen decreases.

Answer

As temperature increases, dissolved oxygen increases.

Answer

As temperature decreases, dissolved oxygen decreases.

Answer

A change in temperature has no effect on dissolved oxygen.

Question 44

Pure water is neutral. If water is neither an acid nor a base, what is the pH of water?

Accepted Answer

7

Answer

0

Answer

10

Question 45

A scientist collected water quality data in a protected estuary over time.  He/she measured a nitrate level of 6ppm, and a dissolved oxygen level of 2 mg/l.  Which would the scientist mostly likely conclude about this site?

Accepted Answer

nitrate levels are high, oxygen levels are low

Answer

nitrate and oxygen levels are normal

Answer

nitrate levels are high, and oxygen levels are healthy

Question 46

How are indicator species like a warning system for bodies of water?

Accepted Answer

Their illness or death indicates pollution in an aquatic ecosystem

Answer

Their illness or death indicates the body of water is becoming more populated.

Answer

They indicate when food sources are declining

Answer

The indicate when predators are reducing the numbers of species

Question 47

What most directly affects the amount of dissolved oxygen in a body of water?

Accepted Answer

temperature

Answer

pH

Answer

turbidity

Answer

salinity

Question 48

A recreational lake experiences eutrophication because of excess nutrients. Based on this information, how would the recreational lake most likely appear?

Accepted Answer

murky and full of algae

Answer

clear and blue

Answer

orange and rust colored

Answer

oily and greasy

Question 49

After analyzing data collected from a pond, there is significant decrease in dissolved oxygen. Which most likely caused the decline?

Accepted Answer

an increase in algae growth

Answer

an increase in minerals

Answer

an increase in sediment

Answer

a decrease in fish population

ESS.8.3.1/8.3.2

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