Systems Quiz Flashcards

(40 cards)

1
Q

What are the four cycles?

A

Hydrologic, carbon, phosphorus, sulfur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Water cycle

A

Movement of water from ocean to atmosphere back to ocean

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Transpiration

A

Release of water from leaves during photosynthesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What’s the rate of transportation affected by (3)

A
  1. Increases in temperature
  2. Increases in wind
  3. Decreases in humidity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Evapotranspiration

A

Combined amount of evaporation and transpiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What’s the human impact of hydrologic cycle (3)

A
  1. Withdrawal
  2. Increased chance of flooding
  3. Deforestation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What’s the carbon cycle

A

Movement of carbon around biosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where are the major reservations of carbon (3)

A
  1. Oceans
  2. Biosphere
  3. Atmosphere
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What type of carbon do ocean, biosphere, and atmosphere have?

A
  1. Carbonate and bicarbonate
  2. Organic bio molecules
  3. Atmosphere
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the human impacts on carbon cycle?

A

Major impact increasing CO2 concentration in atmosphere by burning fossil fuels and clear cutting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What’s the equation for a combustion rxn, which is also known as -?

A

Carbon combustion

CH4+O2->CO2+H2O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Nitrogen cycle

A

Movement of nitrogen around atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What’s elemental nitrogen?

A

Na

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What’s nitrogen fixation?

A

Conversion of nitrogen gas molecule in atmosphere into ammonia (NH3) and ammonium (NH4+)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is nitrogen fixation accomplished by? (3)

A

Cyanbacteria in water
Bacteria in soil
And lightning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What ways can nitrogen fixation occur? (2)

A
  1. Biotic process

2. Bacteria converting N2->ammonium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the abioticalls (2)

A

Combustion of NO2 to ammonium

Lightning

18
Q

What’s ammonification?

A

Decomposers convert organic remains into detritus and eventually into inorganic ammonia and ammonium ions
Organic N1->ammonium (NH4+)

19
Q

What’s nitrification?

A

Bacteria convert ammonia or ammonium ions in the soil into nitrate ions (NO3) for plants to uptake

20
Q

Denitrification?

A

Bacteria in aquatic sediments covert ammonia and ammonium ions into nitrogen gas (N2) and nitrous oxide (N2O)

21
Q

What are the human impacts on the N cycle? (3)

A
  1. Excess nitrates
  2. Burning of fossil fuels
  3. Using inorganic fertilizers
22
Q

What’s the phosphorus cycle?

A

The movement of excess phosphorus around the biosphere
Does not include atmosphere, no gas form
Released from rocks

23
Q

Human impacts of phosphorus cycle? (1), causes and effects?

A

Phosphate runoff

Causes/effects:
Mining phosphorus rocks
Phosphorus containing detergents

24
Q

What’s the sulfur cycle?

A

Movement of sulfur around the biosphere

25
What are the human impacts on sulfur cycle (1)
Release of sulfur dioxide (SO2) gas
26
What's infiltration? What cycle?
Movement of water into the soil, water cycle
27
What's percolation, what cycle?
Downward flow of water, water cycle
28
What two ways does water return to the oceans from the land?
Groundwater flow, surface runoff
29
Way that humans may intervene in water cycle? (2)
Withdrawal of water and disposing wastes
30
Main reservoir for water on earth?
Oceans
31
Main reservoir for fresh water? (7)
Lakes, rivers, ponds, glaciers, snow, ice, atmosphere
32
Describe important role of plants through ecosystem?
Plant removes water from soil and, through transpiration, returns it back to the atmosphere through transpiration
33
Study the nitrogen cycle picture
Yay!
34
What two processes release carbon into the atmosphere?
Respiration and combustion
35
Name the four reservoirs (sinks) that can act as a source of carbon
Atmosphere Coal Limestone (calcium carbonate) Oil of natural gas
36
Diatoms carry out- and decomposers carry out -
Photosynthesis, respiration
37
Photosynthesis equation | Respiration equation
6CO2+6H2O+Sunlight->C6H12O6+6O2 Respiration-reverse that
38
What effect does human activity have on the amount of carbon stored in sinks
Reducing fossil fuels, increasing CO2 in atmosphere
39
Describe 2 global effects arising from reducing fossil fuels
Increasing CO2 in atmosphere and increase pollution
40
Suggest what could be done to alleviate increasing CO2 in atmosphere and increasing pollution
Minimize reliance on fossil fuels, find alternative