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WGU D199 Test Prep: Introduction to Physical Science

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WGU D199 Test Prep: Introduction to Physical Science

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1. The process of "deforestation" is most commonly caused by:
• A) Natural disasters such as earthquakes
• B) Overpopulation and urban expansion
• C) Climate change and rising sea levels
• D) Agricultural expansion and logging
Answer: D) Agricultural expansion and logging
Rationale: Deforestation is primarily driven by human activities, such
as clearing land for agriculture and logging for timber.


2. Which of the following factors influences the climate of a region?
• A) Proximity to the equator
• B) Human population density
• C) Urbanization
• D) Language spoken in the area
Answer: A) Proximity to the equator
Rationale: The climate of a region is influenced by various physical
factors, with proximity to the equator playing a significant role in
determining temperature and weather patterns.


3. The Earth's atmosphere is composed primarily of:

,• A) Oxygen and nitrogen
• B) Water vapor and methane
• C) Carbon dioxide and nitrogen
• D) Oxygen and carbon dioxide
Answer: A) Oxygen and nitrogen
Rationale: The Earth's atmosphere is primarily composed of nitrogen
(78%) and oxygen (21%), with trace amounts of other gases like argon
and carbon dioxide.


4. The process by which a population becomes more concentrated in
urban areas is called:
• A) Demographic transition
• B) Population migration
• C) Urbanization
• D) Rural depopulation
Answer: C) Urbanization
Rationale: Urbanization refers to the increase in the proportion of
people living in urban areas, which often results from migration and
economic development.


5. The process by which water, wind, and ice shape the Earth’s surface
is called:
• A) Erosion

, • B) Sedimentation
• C) Volcanism
• D) Photosynthesis
Answer: A) Erosion
Rationale: Erosion is the process through which natural forces like
water, wind, and ice break down and shape the Earth's surface.


6. What is the primary focus of economic geography?
• A) The study of natural resources and their distribution
• B) The examination of economic systems and their geographic
patterns
• C) The exploration of the Earth's physical features
• D) The study of human migration
Answer: B) The examination of economic systems and their geographic
patterns
Rationale: Economic geography studies the distribution of economic
activities and resources, analyzing how geographic factors influence
economic processes.


7. Which of the following is a characteristic of a developed country?
• A) High levels of industrialization
• B) Low standards of living
• C) A primarily agricultural economy

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