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Duplicate of Duplicate of Hydrosphere Flashcards | StudBud
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Duplicate of Duplicate of Hydrosphere
Duplicate of Duplicate of Hydrosphere
40 terms
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StudBud Administration
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166 plays
8.E.1.1; 8.E.1.2; 8.E.1.3; 8.E.1.4
Flashcards
40 cards
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Questions
40
Answers
1
Which would best indicate that water taken from a local waterway wasunsafe for drinking?
dead fish in the water
cloudy water
warm temperature
2
Which of the following contains MOST of the water on Earth?
watersheds
ice and aquifers
atmosphere
oceans
3
Which best describes a significant benefit estuaries have on the environment?
Pollution is moved from rivers to oceans through estuaries
Fishing industries thrive in and around tropical estuaries
Wildlife helps protect the land from erosion in estuaries
Coastal wetlands safe & ideal cndtns to suprt animal habitat
4
Why is it important for people to understand how to properly dispose of wastes?
Improper disp in watershed affects H2O amt flowing dwnstrm.
Improper disp in watershed affects organisms living dwnstrm.
Proper disposal will eliminate the need for more landfills.
Proper disposal of wastes will regulate Earth’s climate.
5
Which groundwater contaminant contained in fertilizers and pesticidescomes from farms?
bacteria
sodium
mercury
nitrates
6
Of the compounds dissolved in ocean water, which is most needed byorganisms that live there?
calcium carbonate
elemental nitrogen
magnesium oxide
carbon dioxide
7
Which best explains why the turbidity increases as water samples are taken closer to the shore?
Shoreline erosion causes sediment to wash into the lake.
Swimmers stir up sediment by splashing in water near shore.
Sediment carried from middle of lake to the shore by wind.
Fish stir up sediment while feeding close to the shore.
8
Which best describes the characteristics of a river basin?
A. the land drained by a river and its tributaries
land @ the mouth of a river where water flows into the ocean
the land formed when rivers create estuaries and marshes
the land formed as a result of a river flooding
9
Which event will most likely cause increased turbidity in a lake or pond?
decrease in aquatic plants
increase in aquatic plants
increase in runoff
decrease in runoff
10
Which explains why public beaches & recreational waterways are monitored?
to protect citizens from potential disease
to protect future industrial expansion
to maintain tourism and economic stability
to maintain public health and safety records
11
Why are large numbers of ocean animals found in areas where upwellingoccurs?
Oxygen is decreased by the movement of water.
Nutrients are decreased by the movement of water.
Oxygen is increased by the movement of water.
Nutrients are increased by the movement of water.
12
Which set of terms correctly lists the areas, from MOST likely wettest to driest?
river, floodplain, bluffs
bluffs, river, floodplain
river, bluffs, floodplain
bluffs, floodplain, river
13
Which BEST describes the water in the channels?
lake
wetland
river
aquifer
14
Which of the following are the MOST likely ways that water would move through the water cycle?
4 & 1
3 & 4
1 & 2
2 & 3
15
Which of the following contains the largest percentage of Earth’s fresh water?
lakes
glaciers and ice caps
ground ice and permafrost
groundwater
16
Which best compares the amount of H
2
O present today w/ amount present millions of years ago?
significantly less water on Earth today
significantly more water on Earth today
about the same amount of water on Earth today
slightly more water on Earth today
17
How do algal blooms affect the health of a water system?
They photosynthesize & ↓ the amounts of DO, ↑ H2O quality
block sunlight & their decomp ↓ DO in H2O, ↓ H2O quality
They photosynthesize & ↑ the amounts of DO, ↓ H2O quality
18
Which factors can have the greatest effect on the health of a river system?
human consumption and pH
natural disasters and tidal changes
type of soil and salinity
nitrate levels and turbidity
19
Which best explains the cause of the increasing nitrate levels?
increased growth of algae
decreased biodiversity
runoff from fertilizer
20
What does pH measure?
turbidity
acidity/alkalinity
dissolved oxygen
nutrient level
21
Which will happen to a biological indicator species if there is a sudden ↑ in pollution?
species reproduce @ lower rates & maintain population #s
species reproduce @ higher rates & maintain population #s
increase in the population #s & quality of the individuals
decrease in the population #s & quality of the individuals
22
Where would the majority of the fresh water on Earth be found?
swamps and wetlands
lakes and rivers
groundwater and aquifers
ice caps and glaciers
23
How is the amount of oxygen in ocean water affected by temperature?
amount of O2 in ocean water ↑ as temperature ↓
amount of O2 in ocean water ↓ as temperature ↓
amount of O2 in ocean water is constant as temperature ↓
amount of O2 in ocean water ↑ as temperature ↑
24
Which is most important for protecting the quality of a local river basin?
reducing recreational activities around streams and lakes
planting and protecting plants in neighborhoods and parks
planting and protecting plants around streams and lakes
reducing industrial activities in rural areas
25
Which best explains why a scientist would use nets to capture and count organisms in a river?
to measure turbidity
to measure biodiversity
to measure temperature
to measure pH
26
Which would affect the amount of H
2
O in a lake that supplies drinking water to the nearby city?
use of the lake for recreational purposes
amount of sediment in the lake
a factory releasing chemicals into the lake
long-term water shortage in the area of the lake
27
Which may cause scientists to be concerned about the quality of lakewater?
high levels of nitrates
high levels of oxygen
low levels of arsenic
low levels of salt
28
Which could cause a well that has always worked perfectly to suddenly stop working?
a falling water table due to decreased precipitation
a rising water table due to decreased precipitation
a falling water table due to increased precipitation
a rising water table due to increased precipitation
29
Why do large numbers of ocean life-forms live near areas of upwelling?
Upwelling keeps large predator fish away from the surface
Upwelling helps push small fish up toward the surface
Upwelling brings warm water to the surface
Upwelling brings nutrients to the surface
30
Which provides the largest source of dissolved oxygen in the ocean?
coral reefs
tidal action
hydrothermal vents
algal growth
31
Which best explains why estuaries are productive ecosystems?
They have high levels of dissolved gases.
They receive chemicals from commercial & industrial runoff.
They receive nutrients from both rivers and the ocean.
They have high saltwater content.
32
Which describes the hydrosphere?
layer of atmosphere made up primarily of concentrated ozone
H2O in oceans, lakes, seas, rivers, glaciers & atmosphere
all organisms & the environments in which they live
33
Which environmental factor is most likely measured by bioindicators in a river?
light
dissolved oxygen
temperature
34
Why is it important to monitor turbidity levels of a water system?
Fish are better able to find food in cloudy water
Suspended particles diffuse sunlight & absorb too much heat
Water can only be used for recreation when it is clear
Frogs will destroy fish eggs in murky water
35
Which organism is at the base of a marine food web?
whale
phytoplankton
zooplankton
crab
36
Which will occur if humans continue to overload water systems with excess nutrients?
chemosynthesis
eutrophication
photosynthesis
nitrification
37
Which would most likely result in an unhealthy aquatic habitat?
an increase in dissolved oxygen levels
an increase in water temperature
a decrease in turbidity
a decrease in nitrates levels
38
Which is an area of land that all drains to one place?
river
aquifer
reservoir
watershed
39
How does the development of more tributaries affect a local river basin?
amount of H2O ↓ b/c it's dispersed through channels @ mouth
amount of H2O ↑ b/c it's dispersed through channels @ mouth
amount of H2O ↓ b/c it's gathered from streams near source
amount of H2O ↑ b/c it's gathered from streams near source
40
Which would most likely cause a sudden increase of nitrates in a waterway?
spill from an oil tanker
runoff from a golf course
runoff from a boat yard
discharge from a chemical plant
