How does N make it into water sources?

Its added as fertilizer to crops & rain washes it intorivers, It is leached away from soils as nitrite (NO2-) runoff

Current of water that moves clockwise in N, couter in S

What occurs at 30 degrees N & S as air from the Hadley cell descends back down to earth?

It warms & dries out the earth, creating deserts

Why is there less energy available to organisms at higher trophic levels?

Organisms @ lower levels respire using some of it for growth, Some of it is given off as heat while it changes forms

Which of the following is NOT an instrumental value of estuary ecosystems like mangrove swamps?

Eutrophication of estuaries due to fertilizer runoff

Why does water sink as it moves towards the poles?

It becomes colder and more dense

What is eutrophication?

Excess N/P, blocking sunlight in water & causing algal bloom

Why is a pyramid used to show energy flow in ecosystems?

Available energy decreases as it moves up the food chain

How do humans alter the water cycle?

Deforestation - decreases moisture in air, increases runoff

Which of the following is not true of Phosphorous?

It cycles quickly through most environments

Rank the zones of a pond in order of depth

littoral --> limnetic --> profundal --> benthic

How is Nitrogen converted from atmospheric form (N2 gas) to a form that plants can use?

Nitrogen fixing bacteria convert it into forms they can use

Which of the following explains earth's season?

The earth's 23.5 degree tilt as it rotates around its axis

What types of Biomes do we see around the equator?

Tropical Rain Forest, Tropical Seasonal Forest

How do humans affect watersheds?

Cutting trees increases sedimentation and erosion, Diversion of water away from streams/rivers for irrigation

What is one long-term Carbon storage?

Sedimentary rock on ocean floor

An ecosystem is defined as

Location with an interaction of biotic & abiotic components

Climate describes the

temperature and precipitation of an area

Which 2 factors do scientists use to define an ecosystem as a wetland?

Soil that's saturated/submerged year round & emergent plants

Why is it important that many macronutrients (Ca, Mg, K) exist as positive ions?

Pos. ions are attracted to negatively charged soil particles

Gross Primary Productivity represents

All of the energy generated by producers in an ecosystem

Which describes the unequal heating of earth's surface?

Suns rays are more concentrated @ the equator than at poles

Net Primary Productivity =

Gross Primary Productivity - Respiration Loss

studbud

APES Unit 2

30 termsStudBud Administration139 plays

#EnvironmentalScience #APES #Science

Flashcards30 cardsFPractice quizPHost liveL

Questions 30

Answers

1
How does N make it into water sources?
It dissolves directly in from the atmosphere
Rocks in the water break down slowly over time, releasing N
Its added as fertilizer to crops & rain washes it intorivers
It is leached away from soils as nitrite (NO2-) runoff
2
What is a Geyer?
Another name for Thermohaline circulation
Global current that mixes deep & shallow water
Current of water that moves clockwise in N, couter in S
Precipitation above the equator
3
What occurs at 30 degrees N & S as air from the Hadley cell descends back down to earth?
It remains a stable temperature & moisture
It cools & rains on the earth, causing rainforests
The effect is different in the N & S hemisphere
It warms & dries out the earth, creating deserts
4
Why is there less energy available to organisms at higher trophic levels?
Organisms @ lower levels respire using some of it for growth
Organisms at higher trophic levels don't need as much energy
It is destroyed as it moves through the food pyramid
Some of it is given off as heat while it changes forms
5
Between which latitudes is a Hadley cell?
60-90
all of them
30-60
0-30
6
Between 0-30 degrees, wind blows in which direction?
North-South
East-West
South-North
West-East
7
Which of the following is NOT an instrumental value of estuary ecosystems like mangrove swamps?
Eutrophication of estuaries due to fertilizer runoff
Unique habitat for fish species that are fished by humans
Natural filtration of water pollutants by plant species
Protection of human developments from storm damage
8
Why does water sink as it moves towards the poles?
It warms and becomes more dense
It is pulled down by gravity at the poles
It becomes colder and more dense
It is further from the equator
9
What is eutrophication?
Too much oxygen in a water source
Excess N/P, blocking sunlight in water & causing algal bloom
Lack of N or P in an environment, restricting plant growth
Excess N/P in water that causes all plants to grow rapidly
10
Why is a pyramid used to show energy flow in ecosystems?
Plants form the base of all other life on earth
Available energy decreases as it moves up the food chain
Producers are on the ground so they're the bottom of pyramid
Every ecosystem has three types of trophic level
11
Which of the following is not an instrumental value of forests?
They regulate ground water sources by retaining moisture
They may attract tourism
They provide cleaner air for us to breath
They are beautiful to look at
12
How do humans alter the water cycle?
Increasing CO2 - heats up the earth, lowers sea levels
Deforestation - decreases moisture in air, increases runoff
Building dams - increases sedimentation downstream of dam
Building Homes - shifts the water table down
13
Which of the following is not true of Phosphorous?
It is a limiting nutrient
It has no gaseous form naturally
Organisms use it for ATP
It cycles quickly through most environments
14
Between 30 and 60 degrees (where we live) wind blows in which direction?
North-South
South-North
West-East
East-West
15
Rank the zones of a pond in order of depth
profundal --> benthic --> littoral --> limnetic
limnetic --> littoral --> profundal --> benthic
benthic --> profundal --> limnetic --> littoral
littoral --> limnetic --> profundal --> benthic
16
How is Nitrogen converted from atmospheric form (N2 gas) to a form that plants can use?
Nitrogen dissolves into water that their roots can absorb
Decomposers break down biotic N into ammonium plants can use
Plants absorb it through leaves, like CO2
Nitrogen fixing bacteria convert it into forms they can use
17
Which of the following explains earth's season?
Unequal distribution of ozone
Earth's distance from the sun
The change of ocean currents
The earth's 23.5 degree tilt as it rotates around its axis
18
What types of Biomes do we see around the equator?
Tundra, Boreal Forest, Savanah
Woodlands, Shrublands
Taiga, Temperate Seasonal Forest
Tropical Rain Forest, Tropical Seasonal Forest
19
How do humans affect watersheds?
Cutting trees increases sedimentation and erosion
Adding fertilizer to nearby farms increases plant growth
Using them as recreational areas
Diversion of water away from streams/rivers for irrigation
20
What is one long-term Carbon storage?
Dissolved into Ocean waters as Calcium Carbonate (CaCO3)
Trees and Bushes
Bodies of animals
Sedimentary rock on ocean floor
21
An ecosystem is defined as
An area of similar temperature
Location that has inputs and outputs
An area of similar precipitation
Location with an interaction of biotic & abiotic components
22
What happens to warm air at the equator as it rises?
It warms through adiabatic heating and gives off rain
It warms, contracts, and continues rising
It forms a rain shadow
It cools, expands and rains
23
Climate describes the
the weather in an area
water cycle of an area
temperature and precipitation of an area
the types of life forms that can live in an area
24
Which 2 factors do scientists use to define an ecosystem as a wetland?
Soil that's saturated/submerged year round & emergent plants
Nutrient content & indicator species like mangrove trees
High biodiversity & soil pH
Annual rainfall & temperature
25
Why is it important that many macronutrients (Ca, Mg, K) exist as positive ions?
Negative ions couldn't dissolve in water
Positive ions are healthier for organisms
Negative ions hurt plants
Pos. ions are attracted to negatively charged soil particles
26
Gross Primary Productivity represents
All of the energy generated by producers in an ecosystem
All of the light energy reaching plants
All of the biomass in an ecosystem
All energy made by producers, minus what they use to grow
27
Which describes the unequal heating of earth's surface?
The earth's atmosphere is unevenly distributed
Suns rays are more concentrated @ the equator than at poles
The earth's tilt always changes
The ocean's alter the heating of earth's surface
28
Net Primary Productivity =
Gross Primary Productivity - Respiration Loss
Gross Primary Product - Standing Crop
Respiration Loss - Biomass
Respiration Loss - Gross Primary Productivity
29
Which layer of earth's atmosphere contains beneficial ozone that helps protect from UV rays?
Stratosphere
Troposhpere
Thermosphere
Mesosphere
30
Which human activity has the greatest impact on the Carbon Cycle?
Combustion of Fossil Fuels
Road Construction
Deforestation
Agriculture

APES Unit 2 Flashcards | StudBud