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ENVIRONMENTAL SCIENCE > CHAPTER 7 : LOCAL ENVIRONMENTAL PROBLEMS AND ISSUES > Flashcards

CHAPTER 7 : LOCAL ENVIRONMENTAL PROBLEMS AND ISSUES Flashcards

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Biology 101 flashcards
1
Q

The world is experiencing various
contemporary Environmental Problems and Issues that affect the ___

A

socio-economic, socio-cultural, and biophysical environment.

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2
Q

what are some of the environmental problems and issues in the province of Palawan

A

➢Deterioration of forests
➢ Coastal erosion
➢ Degradation of terrestrial and aquatic habitat
➢ Rapid land-use change
➢ Local climate change impacts on biodiversity

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3
Q

Some Environmental problems and issues in Palawan lead to unavoidable effects and risks such as

A

▪ Food insecurity
▪ Decline fish and crop production
▪ Disasters
▪ Health issues
▪ Poverty

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4
Q

___ refers to a group of individuals of the same species inhabiting an area.

A

Population

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5
Q

what are the factors that interacts to change population size

A

birth rate, death rate, immigration, and emigration

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6
Q

Growth rate (r) of population is equal to

A

Birthrate (b) minus death rate (d)

r = b-d

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7
Q

Natural increase in human population

A

Growth rate of population

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8
Q

___ is the movement from one region or
country to another affects local population

A

Dispersal

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9
Q

2 types of dispersal

A

immigration and emigration

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10
Q

Different species have different

A

Biotic Potential

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11
Q

Biotic Potential factors

A

• Age
• Life span in which individual can reproduce
• Number of reproductive periods per lifetime
• Number of offspring produce each period of reproduction.

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12
Q

Population Growth Curves

A

J – Shape & S – Shape Graph

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13
Q

Exponential Growth forms what type of shape

A

J - Shape

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14
Q

Logistic Growth forms what type of shape

A

S - Shape

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15
Q

As the population increase, so does ___

clue : it limits the population growth

A

Environmental Resistance

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16
Q

Environmental Resistance includes

A

limited food, shelter, increases disease and predation

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17
Q

limited food, shelter, increased disease & predation
occurs at or near the environment’s ___

A

Carrying Capacity

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18
Q

___ is an undesirable condition where the number of the existing human population exceeds the actual capacity of earth.

A

Overpopulation

19
Q

what causes overpopulation

A

•Decline in death rate
•Agricultural Advancement
•Better Medical Facilities
•More hands to Overcome Poverty
•Child Labor
•Technological Advancement in Fertility Treatment
•Immigration
•Lack of Family Planning
•Poor Use of Contraceptives

20
Q

___ allowed humans to increase
food production using fertilizer, herbicides
and pesticides and yield further.

A

20th century

21
Q

Agricultrual Advancement leads to subsequent
___

A

population explosion

22
Q

___ perhaps the biggest reason why the balance of population has been permanently disturbed.

A

Technological advancement

23
Q

___ is considered as the leading cause of overpopulation.

A

Poverty

24
Q

major factor for overpopulation

A

Families that have been through poverty,
natural disasters, or are simply in need of more
hands to work

25
Q

As per the UNICEF, approximately
___ are currently working in countries having few child labor laws

A

150 million children

26
Q

It made possible for couples who are unable to conceive undergo ___ methods and have their own babies

A

fertility treatment

27
Q

fertility treatment leads to

A

rise in
the birth rate

28
Q

People settle to a more developed countries which eventually make those places overcrowded. Which leads to ___

A

more demand of resources

29
Q

Those type of people who are unable to understand the harmful effects of overpopulation, and lack of quality education prompts them to avoid family planning measures.

A

a large number of people who are living below the poverty line and have no or little
knowledge about family planning

30
Q

Poor family planning on the part of partners
can lead to ___

A

unexpected pregnancies

31
Q

Fatal Effects of Overpopulation

A

▪ Depletion of Resources
▪ Degradation of Environment
▪ Conflicts and Wars
▪ Rise in Unemployment
▪ High Cost of Living
▪ Pandemics and Epidemics
▪ Malnutrition, Starvation & Famine
▪ Water Shortage
▪ Lower Life Expectancy
▪ Extinction
▪ Increased Intensive Farming
▪ Faster Climate Change

32
Q

The introduction of toxic or harmful materials into the physical environment.

A

Pollution

33
Q

harmful materials into the physical
environment

A

pollutants

34
Q

types of pollutants

A

• Degradable
• Slowly Degradable
• Non-degradable

35
Q

this type of pollutants that can be rapidly broken down by the natural processes.

A

Degradable or Non-persistent Pollutants

36
Q

This type of pollutants remains in the environment for many years in an unchanged condition and take decades or longer to degrade.

A

Slowly Degradable or Persistent Pollutants

37
Q

this type of pollutants cannot be degraded by naturals processes.

A

Non-degradable Pollutants

38
Q

Types of pollution

A

▪ Air
▪ Water
▪ Soil
▪ Noise
▪ Light pollution

39
Q

An unwanted atmospheric condition, with the presence of substances in the atmosphere
which are harmful to living organism and its
environment.

A

Air Pollution

40
Q

it identify and monitor the conventional pollutants and other pollutants in ambient air
(air around us)

A

Clean Air Act 1970

41
Q

Hazardous Air Pollutants

A

▪ Metal Compounds
▪ Chlorinated Hydrocarbons
▪ Volatile organic compound
▪ Gasoline Vapor
▪ Solvent
▪ Components of Plastic

42
Q

it is released directly from the source into the air in harmful form.

A

Primary Pollutants

43
Q

formed by chemical reactions as components of the air mix and interact

A

Secondary Pollutants

44
Q

natural cost of air pollution

A

• Dust
• Methane
• Smoke and Carbon Monoxide
• Pollen
• Gas emissions
• Volatile organic compounds (VOCs)

ENVIRONMENTAL SCIENCE (7 decks)

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