Water Quality Lab Manual (hydrosphere)

Question 1

THE TEMPERATURE OF A BODY OF WATER INFLUENCES ITS

Answer 1

OVERALL QUALITY

Question 2

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

Answer 2

THERMAL POLLUTION

Question 3

ANOTHER FACTOR THAT MAY AFFECT WATER TEMPERATURE IS

Answer 3

THE TEMPERATURE OF THE AIR ABOVE THE WATER

Question 4

A SHALLOW STREAM IS MORE SUSCEPTIBLE TO CHANGES IN TEMP THAN

Answer 4

A DEEP RIVER

Question 5

FACTORS THAT AFFECT WATER TEMPERATURE

Answer 5

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

Question 6

EFFECTS OF WATER TEMPERATURE

Answer 6

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

Question 7

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

Answer 7

GAS

Question 8

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

Answer 8

AQUATIC PLANTS AND ALGAE

Question 9

WHEN TEMP BECOMES TOO HOT OR COLD, ORGANISMS BECOME

Answer 9

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

Question 10

THE CONCENTRATIONS OF WHICH 2 IONS DETERMINES THE PH VALUE

Answer 10

HYDROGEN AND HYDROXIDE

Question 11

WATER WITH A PH OF 7 IS CONSIDERED TO BE

Answer 11

NEUTRAL

Question 12

ACIDIC

Answer 12

H EXCEEDS OH

Question 13

BASIC

Answer 13

OH EXCEEDS H

Question 14

RAINFALL GENERALLY HAS A PH VALUE BETWEEN

Answer 14

5 AND 6.5

Question 15

RAINFALL IS ACIDIC BECAUSE

Answer 15

DISSOLVED CO2 AND AIR POLLUTANTS

Question 16

STREAMS AND LAKES ARE OFTEN

Answer 16

BASIC WITH PH VALUES BETWEEN 7 AND 8

Question 17

FACTORS THAT AFFECT PH LEVELS

Answer 17

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

Question 18

ALKALINITY

Answer 18

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

Question 19

TURBIDITY

Answer 19

MEASURE OF WATERS LACK OF CLARITY

Question 20

EFFECTS OF TURBIDITY

Answer 20

REDUCES WATER CLARITY
AESTHETICALLY DISPLEASING
DECREASES PHOTOSYNTHETIC RATE
INCREASES WATER TEMP

Question 21

HIGH TURBIDITY WILL DECREASE

Answer 21

PHOTOSYNTHSIS

Question 22

WHEN WATER IS CLOUDY IT WILL BE

Answer 22

WARMER

Question 23

EXPECTED LEVELS OF TURBIDITY

Answer 23

BETWEEN 1 NTU AND 50 NTU

Question 24

STANDARD FOR DRINKING WATER IS

Answer 24

.5 NTU TO 1 NTU

Question 25

SOURCES OF TURBIDITY

Answer 25

``` SOIL EROSION URBAN RUNOFF INDUSTRIAL WASTE ABUNDANT BOTTOM DWELLERS ORGANICS ```

Question 26

DIVERSITY OF ORGANISMS IS GREATEST AT

Answer 26

HIGHER DO CONCENTRATIOINS

Question 27

SOURCES OF DO

Answer 27

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

Question 28

FACTORS THAT AFFECT DO LEVELS

Answer 28

``` TEMPERATURE AQUATIC PLANT POP DECAYING ORGANIC MATERIAL IN WATER STREAM FLOW ALTITUDE HUMAN ACIVITIES ```

Question 29

NITRATES ARE NECESSARY FORPLANTS TO

Answer 29

SYNTHESIZE AMINO ACIDS AND PROTEINS

Question 30

EUTROPHICATION

Answer 30

EXCESSIVE GROWTH OF AQUATIC PLANTS AND ALGAE

Question 31

EXPECTED LEVELS OF NITRATE

Answer 31

.1 TO 4 MG/L

Question 32

NITROGEN FIXATION

Answer 32

BACTERIA CONVERT ATMOSPHERIC NITROGEN INTO AMMONIUM

Question 33

AMMONIFICATION

Answer 33

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

Question 34

NITRIFICATION

Answer 34

AMMONIUM IONS TURN INTO NITRATE

Question 35

PONDS AND SWAMPS USUALLY HAVE A HIGHER AMONNIUM NITROGEN LEVEL THAN

Answer 35

FAST FLOWING WATER

Question 36

ALKALINITY IN SURFACE WATER COMES FROM

Answer 36

CALCIUM CARBONATE LEACHED FROM ROCKS AND SOIL

Question 37

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

Answer 37

HIGHER OCCURRENCE OF LIMESTONES

Question 38

OLIGOTROPHIC

Answer 38

CALCIUM ION CONCENTRATION DROPS BELOW 5 MG/L

Question 39

HARD WATER

Answer 39

WHEN WATER PASSES THROUGH OR OVER MINERAL DEPOSITS SUCH AS LIMESTONE

Question 40

STREAM FLOW OR DISCHARGE

Answer 40

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

Question 41

2 COMPONENTS OF STREAM FLOW

Answer 41

FLOW VELOCITY | VOLUME OF WATER IN STREA