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APEGS > Water Quality Lab Manual (hydrosphere) > Flashcards

Water Quality Lab Manual (hydrosphere) Flashcards

1
Q

THE TEMPERATURE OF A BODY OF WATER INFLUENCES ITS

A

OVERALL QUALITY

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2
Q

IF WATER TEMP CHANGES BY EVEN A FEW DEGREES OVER A ONE MILE STRETCH OF THE STREAM IT COULD INDICATE A SOURCE OF

A

THERMAL POLLUTION

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3
Q

ANOTHER FACTOR THAT MAY AFFECT WATER TEMPERATURE IS

A

THE TEMPERATURE OF THE AIR ABOVE THE WATER

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4
Q

A SHALLOW STREAM IS MORE SUSCEPTIBLE TO CHANGES IN TEMP THAN

A

A DEEP RIVER

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5
Q

FACTORS THAT AFFECT WATER TEMPERATURE

A 
AIR TEMPERATURE
AMOUNT OF SHADE
SOIL EROSION INCREASING TURBIDITY
THERMAL POLLUTION FROM HUMAN ACTIVITIES
CONFLUENCE OF STREAMS
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6
Q

EFFECTS OF WATER TEMPERATURE

A

SOLUBILITY OF DISSOLVED OXYGEN
RATE OF PLANT GROWTH
METABOLIC RATE OF ORGANISMS
RESISTANCE IN ORGANISMS

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7
Q

MORE ___ CAN BE DISSOLVED IN COLD WATER THAN IN WARM WATER

A

GAS

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8
Q

INCREASED WATER TEMPERATURE CAN ALSO CAUSE AN INCREASEIN THE PHYOTOSYNTHETIC RATE OF

A

AQUATIC PLANTS AND ALGAE

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9
Q

WHEN TEMP BECOMES TOO HOT OR COLD, ORGANISMS BECOME

A

STRESSED, LOWERING THEIR RESISTANCE TO POLLUTANTS, DISEASES, AND PARASITES

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10
Q

THE CONCENTRATIONS OF WHICH 2 IONS DETERMINES THE PH VALUE

A

HYDROGEN AND HYDROXIDE

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11
Q

WATER WITH A PH OF 7 IS CONSIDERED TO BE

A

NEUTRAL

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12
Q

ACIDIC

A

H EXCEEDS OH

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13
Q

BASIC

A

OH EXCEEDS H

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14
Q

RAINFALL GENERALLY HAS A PH VALUE BETWEEN

A

5 AND 6.5

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15
Q

RAINFALL IS ACIDIC BECAUSE

A

DISSOLVED CO2 AND AIR POLLUTANTS

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16
Q

STREAMS AND LAKES ARE OFTEN

A

BASIC WITH PH VALUES BETWEEN 7 AND 8

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17
Q

FACTORS THAT AFFECT PH LEVELS

A 
ACIDIC RAINFALL
ALGAL BLOOMS
LEVEL OF HARD WATER MINERALS
RELEASES FROM INDUSTRIAL PROCESSES
CARBONIC ACID FROM RESPIRATION OR DECOMPOSITION
OXIDATION OF SULFIDES IN SEDIMENTS
18
Q

ALKALINITY

A

MEASUREMENT OF CAPACITY OR ABILITY OF THE BODY OF ATER TO NEAUTRALIZE ACIDS IN THE WATER

19
Q

TURBIDITY

A

MEASURE OF WATERS LACK OF CLARITY

20
Q

EFFECTS OF TURBIDITY

A

REDUCES WATER CLARITY
AESTHETICALLY DISPLEASING
DECREASES PHOTOSYNTHETIC RATE
INCREASES WATER TEMP

21
Q

HIGH TURBIDITY WILL DECREASE

A

PHOTOSYNTHSIS

22
Q

WHEN WATER IS CLOUDY IT WILL BE

A

WARMER

23
Q

EXPECTED LEVELS OF TURBIDITY

A

BETWEEN 1 NTU AND 50 NTU

24
Q

STANDARD FOR DRINKING WATER IS

A

.5 NTU TO 1 NTU

25
Q

SOURCES OF TURBIDITY

A 
SOIL EROSION
URBAN RUNOFF
INDUSTRIAL WASTE
ABUNDANT BOTTOM DWELLERS
ORGANICS
26
Q

DIVERSITY OF ORGANISMS IS GREATEST AT

A

HIGHER DO CONCENTRATIOINS

27
Q

SOURCES OF DO

A

DIFFUSION FROM ATMOSPHERE
AERATION AS WATER MOVES OVER ROCKS AND DEBRIS
AERATION FROM WIND AND WAVES
PHOTOSYNTHESIS OF AQUATIC PANTS

28
Q

FACTORS THAT AFFECT DO LEVELS

A 
TEMPERATURE
AQUATIC PLANT POP
DECAYING ORGANIC MATERIAL IN WATER
STREAM FLOW
ALTITUDE
HUMAN ACIVITIES
29
Q

NITRATES ARE NECESSARY FORPLANTS TO

A

SYNTHESIZE AMINO ACIDS AND PROTEINS

30
Q

EUTROPHICATION

A

EXCESSIVE GROWTH OF AQUATIC PLANTS AND ALGAE

31
Q

EXPECTED LEVELS OF NITRATE

A

.1 TO 4 MG/L

32
Q

NITROGEN FIXATION

A

BACTERIA CONVERT ATMOSPHERIC NITROGEN INTO AMMONIUM

33
Q

AMMONIFICATION

A

BACTERIA CAN CONVERT NITROGEN IN DECAYING PLANT AND ANIMAL MATTER AND WASTE PRODUCTS IN THE SOIL OR WATER TO AMMONIUM

34
Q

NITRIFICATION

A

AMMONIUM IONS TURN INTO NITRATE

35
Q

PONDS AND SWAMPS USUALLY HAVE A HIGHER AMONNIUM NITROGEN LEVEL THAN

A

FAST FLOWING WATER

36
Q

ALKALINITY IN SURFACE WATER COMES FROM

A

CALCIUM CARBONATE LEACHED FROM ROCKS AND SOIL

37
Q

WATER IN EASTERN HALF OF us WILL AVE A HIGHER ALKALINITY THAN WEST BECAUSE

A

HIGHER OCCURRENCE OF LIMESTONES

38
Q

OLIGOTROPHIC

A

CALCIUM ION CONCENTRATION DROPS BELOW 5 MG/L

39
Q

HARD WATER

A

WHEN WATER PASSES THROUGH OR OVER MINERAL DEPOSITS SUCH AS LIMESTONE

40
Q

STREAM FLOW OR DISCHARGE

A

VOLUME OF WATER THAT MOVES THROUGH A SPECIFIC POINT IN A STREAM DURING A GIVEN PERIOD OF TIME

41
Q

2 COMPONENTS OF STREAM FLOW

A

FLOW VELOCITY

VOLUME OF WATER IN STREA

APEGS (9 decks)

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