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Biomes, Ecosystems, Aquatic Ecosystems Flashcards | StudBud
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Biomes, Ecosystems, Aquatic Ecosystems
Biomes, Ecosystems, Aquatic Ecosystems
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7th Grade Science
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38 cards
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1
_________ are a land area that is saturated with water, either seasonally or permanently
Estuaries
Wetlands
Bogs
Tropical Rainforests
2
What is a glacier that spreads over land in all directions?
Ice pack
ice sheet
permafrost
frozen tundra
3
_______________ is an area of land that drains into a river or lake
Estuary
Watershed
Delta
aquifer
4
Any large mass of ice that forms on land is called
glacier
tundra
ice sheet
permafrost
5
Process which sediments are pressed together under pressure of their own weight
Gluing
Cementation
Fusion
Compaction
6
All of the living (biotic) and nonliving (biotic) interacting in an area
Habitats
Biomes
Ecosystems
7
In which ecosystem would an organism adapted to daily changes in salinity be found?
Pond
Lake
Estuary
Open ocean
8
Water above the surface of land such as lakes, rivers, streams, ponds, floodwater and runoff
Running water
Surface water
Groundwater
Above groundwater
9
Process which a community of organisms slowly replaces another in a certain area
community replacement
extinction
dominate replacement
ecological succession
10
Water with less than 0.2 percent salt dissolved in it is called
salinity
fresh water
salt water
ground water
11
What is salinity?
I don't know.
A measure of freshwater saltiness.
The amount of salt dissolved in water.
The amount of potassium dissolved in salt water.
12
Process which minerals precipitate into spaces between sediment binding sediments forming rock
Cementation
Concreting
Binding
Fusing
13
Marshes, bogs, saltwater flats are ___________.
Wetlands
Estuaries
Smelly
Muddy
14
How well rock or sediment lets water pass through is called
Swiss Cheese effect
Porosity
Sponginess
Permeability
15
Weathering ins the breaking down of rocks into sediment
True
Mostly False
Mostly true
False
16
Regions that are characterized by climate and geography
Continents
Biomes
Ecosystems
Ecoregions
17
Data shows that Earth's temperature rises as the level of _____________ rises.
carbon dioxide
helium
oxygen
hydrogen
18
The biggest human impact to ecosystems is_____________.
Pollution
Building hmes
Building roads
Over fishing
19
Process moving weather rock from one location to another
Weathering
Deposition
Erosion
20
Two abiotic factors in aquatic ecosystems are -
fish, plants
I don't know
sunlight, dissolved oxygen
temperature, fish
21
What is a large body of water surrounded by land?
Ocean
Lake
Pool
Pond
22
Which ecosystem would not be classified as a freshwater ecosystem?
Open Ocean
Lake
Swimming Pool
Pond
23
Rivers characteristically are _______ flowing water.
Faster
Rapid
Flat
Slower
24
_________ Is an area above water at low tide and under water at high tide.
School Zone
Intertidal Zone
Shore Zone
Middle Zone
25
Snow and ice keep the Earth's temperture low by_____________ sunlight
reflecting
refracting
absorbing
mirroring
26
__________ are the first organisms to live in an area
Dominant species
Ecological successors
Pioneer species
27
An aquifer is an underground layer of rock or soil that holds water
I don't know
False
If you say so
True
28
Porosity is a measure of _________in a rock or sediment
colors
water
ingredients
empty space
29
Ecosystems such as rivers, lakes, streams, ponds.
Saltwater
Brackish water
Open water
Freshwater
30
The upper limit of soil that is saturated with groundwater beneath the Earth's surface is the
I don't know
water table
water column
zone of saturation
31
More than 2/3 of the Earth's freshwater is
salty
polluted
ice
liquid
32
Streams are usually___________in clarity.
Hazy
Muddy
Clear
Rocky
33
Water that fills the cracs and spaces in underground soil and rock layers
porosity
ice sheet
surface water
groundwater
34
Process which sediment is put down in new locations by glaciers, gravity, waves, wind and water
Placing
Deposition
Landing
Compaction
35
Deposition occurs when the flow of water ____________
Speeds up
Slows down
Stays a constant speed
Stops
36
Wetlands consist of marshes, bogs or swamps.
I don't know
True
False
37
Wetlands have thin layers of ________ covering _________ that is wet most of the time.
land, water
water, land
oceans, sand
sand, rocks
38
______ are made of streams and rivers with a free connection to the open sea.
Wetlands
Estuaries
Barrier Islands
Sand dunes