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2024 SEM 2 ENV SCI (LEC) > introduction to environmental science > Flashcards

introduction to environmental science Flashcards

1
Q

what are the major environmental problems

A

resource depletion
pollution
loss of biodiversity

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2
Q

what is the difference between renewable resources and non-renewable resources (give examples)

A

renewable resources :
can be replenished within a human lifetime (solar energy, wind energy, biofuels, trees)
nonrenewable resources: replenished slowly (coal, oil, minerals)

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3
Q

a degradation or an undesired change in air, water, or soil that affects the health of living things

A

pollution

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4
Q

what is the difference between biodegradable pollution and nondegradable pollution

A

biodegradable pollution:
will break down naturally over time
nonbiodegradable pollution:
does not break down

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5
Q

it is the number of species on the earth is unknown but estimates to be in the tens of millions

A

loss of biodiversity

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6
Q

define biodiversity

A

the no. of different species present in one specific ecosystem

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7
Q

it is the study of our planet’s natural systems and how humans and the environment affect one another

A

environmental science

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8
Q

the environment includes all ____and ____ things with
which _____ interact.

A

living and non-living
organisms

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9
Q

what is the first step for solving environmental problems

A

understanding the interactions between the humans and the environment

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10
Q

it is a great deal of resources is needed to support the human population

A

resources depletion

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11
Q

issues made by human activities that affect the environment, causing disaster

A

global environmental challenges

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12
Q

what are some global environmental challenges

A

global warming
earthquakes
air quality
fresh water
deforestation
demography
biodiversity law
energy
volcanoes
epidemic disease

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13
Q

define extinction

A

complete loss of species, is a natural event that can be accelerated by human actions

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14
Q

Intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.

A

science

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15
Q

the environment includes ____, ____, ____

A

biophysical
socio-cultural
politico-economic

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16
Q

it is a field of study that deals with the application of physical concepts and techniques to biological issue

A

biophysical

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17
Q

it is a broad range of social and cultural factors that affect attitudes, emotions, actions and eventually health results

A

socio-cultural

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18
Q

it is a field of study in political science and economics that examines how political system and control economic system

A

politico-economic

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19
Q

environmental sci is the process of ______ and ______ to develop skills and attitudes necessary to understand and appreciate the interrelatedness among man, his culture and biophysical surrounding

A

recognizing values
classifying concepts

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20
Q

envi sci is the _____ of how humanity interacts with _____ and the ____

A

interdisciplinary study
other organisms
non-living physical environment

21
Q

what are the 2 main subgroupings under the interdisciplinary study of other organisms and non living physical environment

A

the life science (such as biology)
the environment sci (such as geology)

22
Q

envi sci refers to the awareness of the ____ and _____ envi and perceives its relevance for real life situations. as well as identify problems and _____ of the envi to be improved in view of sustainable development

A

physical
cultural
environmental imbalances

23
Q

environmental sci entails practice in ____ and ____ of code behaviour about problems and issues concerning environmental quality

A

decision making
self-formulation

24
Q

what are the aim of environmental sci

A

Attitude
Skill
Awareness
Participation
Knowledge
Evaluate

25
Q

what are the focus of environmental sci

A

Identify
Understand
Solve problems

26
Q

true or false:
earth has limited resources to support human societies

A

true

27
Q

true or false:
environmental problems are complex. they always have simple solution

A

false - they SELDOM have simple solutions

28
Q

what are the importance of environmental science

A

realize the environmental problems are global
understand the impacts of development on the environment discover sustainable ways of living
efficient utilization of natural resources
understand behaviour of organism under natural conditions
shed light on contemporary concepts such as how to conserve biodiversity
understand the interrelationship btwn organisms in popu and C
learn & creat awareness abt environmental problems at local, national and international lvl

29
Q

identify the science scenarios involved with environmental science:
a community decides to use coal for electricity, as it is the cheapest source available

A

economics

30
Q

identify the science scenarios involved with environmental science: the coal must be mined from under the soil

A

geology

31
Q

identify the science scenarios involved with environmental science:
the coal must be transported to the population center by road or rail

A

engineering

32
Q

identify the science scenarios involved with environmental science:
when it is burned at a power plant, air pollution is released. some of the pollution is converted to acid in the atmosphere

A

chemistry

33
Q

identify the science scenarios involved with environmental science:
this falls as acid rain somewhere downwind

A

meteorology

34
Q

identify the science scenarios involved with environmental science:
this acid stresses plants by affecting their nutrient absorption

A

ecology

35
Q

identify the science scenarios involved with environmental science:
laws are passed requiring the plant to install pollution scrubbers

A

politics

36
Q

define sustainability

A

a sustainable system that can continue indefinitely without depleting any of the material or energy required to keep it going

37
Q

ample forest were systematically cut for agriculture land, structural materials and to move large stone monuments.
deforestation led to ____ then led to ____ and ____ of fish and shellfish populations

A

soil erosion
water quality degradation and elimination

38
Q

it is the amount of biologically productive land and water needed to supply the people in a particular country or area with resources and to absorb and recycle the wastes and pollution produced by such resource use.

A

ecological footprint

39
Q

what is the percentage of pollution due to vehicular emissions

A

80%

40
Q

how many filipinos are exposed to air pollution, with health cost & loss of income of ____

A

per WB, 18Million
7.6 billion pesos/ year

41
Q

what did the philippines do to conserve and protect the natural forest

A

total log ban (prohibit the cutting/ removal of trees)
create a national anti-illegal logging task force (reduce illegal deforestation)

42
Q

BOD or demand for oxygen in water, for ____ major river in ____ at ____ mg/L, 4x the standard at ____ mg/L

A

biochemical oxygen demand
19
2010
27
7

43
Q

study of organisms and the environment interacting with one another

A

ecology

44
Q

study of geology, soil science, volcanoes, and the earth’s crust as they relate to the environment

A

geoscience

45
Q

it is the study of earth’s atmosphere. it analyzes the relation of the earth’s atmosphere to the atmosphere of other systems

A

atmospheric science

46
Q

it is the study of changes chemicals make in the environment

A

environmental chemistry

47
Q

examples of environmental chemistry

A

contamination of soil
pollution of water
degradation of chemicals
transport of chemicals

48
Q

what are the 4 components that relationship focus on the interaction between earth

A

its water
its air
its living organism
dynamic interdependent

49
Q

What does the ecological footprint measures

A

How fast we consume resources and generate waste

2024 SEM 2 ENV SCI (LEC) (13 decks)

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