PHC 4047 Midterm Review Exam UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Who is most at risk from disease caused by environmental factors? - CORRECT ANSWER The
susceptible persons are the elderly, those with chronic illnesses and disabilities, pregnant women and
children.
What age groups is the flu most deadly to? - CORRECT ANSWER those younger than 5 and
those older than 65
Describe the concept of replacement. - CORRECT ANSWER Every women must have 2
children to maintain the population. To grow the population, they must have more than 2 children.
What is the U.S. fertility rate? - CORRECT ANSWER 1.78 children/women
Since the U.S. fertility rate is lower than the replacement rate, how is the U.S population increasing? -
CORRECT ANSWER migration
What are some current threats to our environment? - CORRECT ANSWER plastic in the ocean,
hazardous wastes leaching into the ground and water, air pollution, toxins (pesticides), deforestation,
global warming
Why should we care about the environment? - CORRECT ANSWER Clean air to breathe and
water to drink, land that can produce food that is not contaminated, effectively managed wastes,
diseases kept at bay, resources preserved, being prepared for natural disasters, and produce notorious
What is meant by environmental health? - CORRECT ANSWER It addresses all physical,
chemical, and biological factors external to a person, and all related factors impacting behavior.
Targeted towards preventing disease, and creating health supportive environments.
What percentage of mortality is linked to environmental factors? - CORRECT ANSWER 40%
, What is a megacity? - CORRECT ANSWER a city with a population of more than 10 million
people
What are megacity's influences on the environment? - CORRECT ANSWER power, sanitation
and waste disposal, potable water, food, construction materials, technology
What is carrying-capacity? - CORRECT ANSWER the maximum number of individuals that
can be supported in a given environment, which affects the human and nonhuman population. (the
population an environment can support without undergoing environmental deterioration)
What is food insecurity ? - CORRECT ANSWER Supplies of wholesome foods are uncertain or
in limited availability. Occurs when carrying capacity is exceeded.
What is biodiversity? - CORRECT ANSWER Different types of variability of animal and plant
species in a given location. Can also refer to gene population, habitats, and the number of species.
What accelerates the loss of biodiversity? - CORRECT ANSWER dramatic growth of a
population
Vector - CORRECT ANSWER organism that spreads infections by conveying pathogens
What is the basic premise of life course theory? - CORRECT ANSWER the idea that the things
you experience in younger stages affects you later in life
Stages:
Childhood
Adolescence
Young adult
Midlife
Later life
What is the environment? - CORRECT ANSWER physical: physical, chemical, and biotic
factors that act upon an organism or an ecological community and ultimately determine its form and
survival.
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Who is most at risk from disease caused by environmental factors? - CORRECT ANSWER The
susceptible persons are the elderly, those with chronic illnesses and disabilities, pregnant women and
children.
What age groups is the flu most deadly to? - CORRECT ANSWER those younger than 5 and
those older than 65
Describe the concept of replacement. - CORRECT ANSWER Every women must have 2
children to maintain the population. To grow the population, they must have more than 2 children.
What is the U.S. fertility rate? - CORRECT ANSWER 1.78 children/women
Since the U.S. fertility rate is lower than the replacement rate, how is the U.S population increasing? -
CORRECT ANSWER migration
What are some current threats to our environment? - CORRECT ANSWER plastic in the ocean,
hazardous wastes leaching into the ground and water, air pollution, toxins (pesticides), deforestation,
global warming
Why should we care about the environment? - CORRECT ANSWER Clean air to breathe and
water to drink, land that can produce food that is not contaminated, effectively managed wastes,
diseases kept at bay, resources preserved, being prepared for natural disasters, and produce notorious
What is meant by environmental health? - CORRECT ANSWER It addresses all physical,
chemical, and biological factors external to a person, and all related factors impacting behavior.
Targeted towards preventing disease, and creating health supportive environments.
What percentage of mortality is linked to environmental factors? - CORRECT ANSWER 40%
, What is a megacity? - CORRECT ANSWER a city with a population of more than 10 million
people
What are megacity's influences on the environment? - CORRECT ANSWER power, sanitation
and waste disposal, potable water, food, construction materials, technology
What is carrying-capacity? - CORRECT ANSWER the maximum number of individuals that
can be supported in a given environment, which affects the human and nonhuman population. (the
population an environment can support without undergoing environmental deterioration)
What is food insecurity ? - CORRECT ANSWER Supplies of wholesome foods are uncertain or
in limited availability. Occurs when carrying capacity is exceeded.
What is biodiversity? - CORRECT ANSWER Different types of variability of animal and plant
species in a given location. Can also refer to gene population, habitats, and the number of species.
What accelerates the loss of biodiversity? - CORRECT ANSWER dramatic growth of a
population
Vector - CORRECT ANSWER organism that spreads infections by conveying pathogens
What is the basic premise of life course theory? - CORRECT ANSWER the idea that the things
you experience in younger stages affects you later in life
Stages:
Childhood
Adolescence
Young adult
Midlife
Later life
What is the environment? - CORRECT ANSWER physical: physical, chemical, and biotic
factors that act upon an organism or an ecological community and ultimately determine its form and
survival.
