The Environment Flashcards

0
Q

Define photo synthesis

A

Process by which plants convert sunlight as energy

Carbon dioxide and water into glucose and oxygen

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1
Q

Explain population

A

Members of the same species living in the same habitat.

Eg lizard under rock

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2
Q

Define producers (autotrophs)

A

Plant which produce their own food by the process of photosynthesis

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3
Q

Define consumers (heterotrophs)

A

Organisms which obtain food by eating other organism

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4
Q

Define herbivore (primary)

A

Consumer or plant eater

Eg. caterpillars, lizards, mice,

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5
Q

Define carnivore (secondary)

A

Meat eaters

Sharks

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6
Q

Define predators

A

Catch food eg spider snake shark

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7
Q

Define scavengers

A

Eat dead animals

Eg fox

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8
Q

Define omnivores

A

Animals that obtain food from plants and animals.

Eg human, turtle, fox

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9
Q

Define parasites

A

Feed in or on body

Eg flea, ticks

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10
Q

Define decomposers

A

Break down animals and plants into simpler substances.

Eg termites and millipede

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11
Q

List biotic components

A

Produce
Consumers
Decomposes
Resources (plants)

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12
Q

List physical abiotic components

A

Waves, currents, temp, light, wind, rain

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13
Q

List chemical abiotic components

A

Soil, oxygen, carbon dioxide, nutrients, salinity, water.

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14
Q

Explain forests

A
Create oxygen
Supply homes and shelter
Influences by temp, rain, soil, position
If tops join (closed)
If tops don't (open)
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15
Q

Explain the Savannah grass lands

A

Tropical
Between desert and rain forest
Natural or artificial
1/3 land surface

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16
Q

Explain deserts

A

20% of world has low rain fall
Hot or cold
40% of Australia

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17
Q

Explain oceans and seas

A

70% of planet

3 major oceans. Pacific, Atlantic, Indian

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18
Q

Explain coral reef

A

Colonies that animals & plants live in
Shallow clear water
Sunlight

19
Q

Explain island

A

Wa has 2 bio regions
Northwest- we/nt =1.07k sq mill
Southwest- Kalbarri past wa=1.3 k mil

20
Q

Explain coastlines and sandy beaches

A

Beaches, shallow water, sand bars

21
Q

Explain wetlands

A

Any land regularly saturated by water

6% of world

22
Q

Explain the reason for talks and scripts

A
Demonstrate importance for particular places or interests
Aim or show something relevant
Skill demonstration
Explain concepts 
Spiritual tone
23
Q

Explain reason for guided walks and tours

A

Narrate stops and direct people to significant points

24
Explain the reason for exhibits and signs
``` Interpreting aspects of the environment Useful to convey info Exhibit - text & image Sign - text Theme awareness/message components = selected detail to act on new knowledge ```
25
Explain self guided trails
Multiple stops to gather info | Used to assist in seeing things not normally noticed
26
Weather is influence by... (4)
Suns heating of the earth Rotation of earth Orbits of moon and planets Difference in air temp. - Wind
27
Explain air pressure
Pressure exerted on object by weight of air above | Higher above sea level means less air above so less air pressure
28
Explain wind speed and directions
Pressure force, Coriolis force, centrifugal force and friction. Act upon parcels of air to move them, resulting in geostrophic wind and gradient wind.
29
What is geostrophic and gradient wind
Geostrophic- high to low pressure across isobars | Gradient- pressure force, Coriolis and centrifugal act on parcel of air
30
Explain visibility
Among of cloud cover | Measures in 8ths
31
Explain reason for precipitation (4)
Dew and frost Fog Rain and drizzle Hail or snow
32
Explain humidity
Humidity is the condition of the atmosphere with regard to its water vapour content
33
Explain temperature (5)
``` Cold - polar Cool- temp Warm- tropical Dry - continental Moist - maritime ```
34
Factors of air temp (4)
Sun movement Air stream movement Wind strength Cloud cover
35
What is persistence method ?
Stating that today will be similar to yesterday
36
What is the steady state or trend method?
Based on snap shot of weather and knowledge of cloud movement
37
What is analogue method ?
Weather pattern assuming similar pattern to previous
38
What is a statistical forecast ?
Mathematica probability base on past atmosphere data
39
What is probability forecast
Climate data and long term records
40
Explain the using technology method
Radar and satellite imaging | Planning
41
Explain short term forecasting in an expedition
Log book to record 9am - 3pm | Wind speed and direction
42
Explain long term forecasting on expedition
Beyond 10 days Good knowledge will enhance Find as much info as possible Climate trends
43
Methods for observing natural environment are (4)
Sighting Tracks Scats Field guides
44
Data can be gathered by (6)
``` Simple observation and recording Map work Sketching Interviewing Photography Use of scientific instruments ```