ESRM 100 EXAM 1- UW QUESTIONS & ANSWERS
Please answer correctly, as it will be graded. The subject of this course is
___________. - Answers -Environmental Science
The addition of a limiting nutrient to a body of water may lead to an algal bloom. What
effect will this algal bloom have on the oxygen content of the water? - Answers -The
algal bloom will cause first an increase, then a sharp decrease in oxygen
If women delay child bearing, - Answers -the growth rate will decrease
The levels of complexity include, from least to greatest: - Answers -Individual-->
population--> community--> ecosystem--> biosphere
______% of the world's most developed population consumes ______% of the world's
energy - Answers -20;58
A close interaction be between two different species, in which one species benefits and
the other is unaffected, is called - Answers -commensalism
The change in genetic composition of a population over time is called: - Answers -
evolution
A null hypothesis is used as a statement that an experiment must disprove. A scientist
wished to test whether fish species A prefers cold water over warm water. Which of the
following is the best null hypothesis for the experiment? - Answers -Fish A has no
preference for cold water over warm water
Atmospheric convection currents are caused by - Answers -the unequal heating of the
Earth by the Sun, and the tendency of warm air to rise
Environmental justice is - Answers -a social movement that works toward equal
enforcement of environmental laws in poor communities
Evidence of biodiversity is seen most directly in the - Answers -number of species in a
region
Which type of species would be most vulnerable to environmental changes? - Answers
-Niche specialists
A hypothesis must be - Answers -testable
, What is a positive effect of upwelling? - Answers -it creates an area of high nutrient
levels along the coast
Which type of population distribution can enhance protection from predators? -
Answers -clumped distribution
An individuals ecological footprint is - Answers -a measure of the total amount of land
required to the support that person's lifestyle
Organisms that eat dead or decaying matter are called - Answers -scavengers
An idea that has been repeatedly tested and confirmed by multiple groups of
researchers is called a - Answers -theory
Nitrogen fixation is a process - Answers -by which organisms convert nitrogen gas into
ammonia
Deforestation can result in - Answers -the rapid flow of water down mountains, leading
to increased erosion and flooding
Which of the countries presents the highest infant mortality rate? - Answers -Tanzania
Which of the following correctly lists substances from highest to lowest PH? - Answers -
household bleach--> seawater--> rainwater--> stomach fluid
Which element is the most abundant in the atmosphere? - Answers -Nitrogen
Which of the following countries has the highest ecological footprint per capita? -
Answers -United States
The limit to how many individuals the food supply can sustain is called - Answers -
carrying capacity of the environment
The phenomenon in which algae inside the coral dies is - Answers -called coral
bleaching
A species that plays a major role in determining the structure of its ecological
community is - Answers -a keystone species
When individuals are found to be distributed evenly throughout an ecosystem it is often
because - Answers -they are territorial
Solar radiation enters the Earth system, and energy leaves it in the form of heat and
reflected light. Therefore, with respect to energy, Earth is: - Answers -an open system
Please answer correctly, as it will be graded. The subject of this course is
___________. - Answers -Environmental Science
The addition of a limiting nutrient to a body of water may lead to an algal bloom. What
effect will this algal bloom have on the oxygen content of the water? - Answers -The
algal bloom will cause first an increase, then a sharp decrease in oxygen
If women delay child bearing, - Answers -the growth rate will decrease
The levels of complexity include, from least to greatest: - Answers -Individual-->
population--> community--> ecosystem--> biosphere
______% of the world's most developed population consumes ______% of the world's
energy - Answers -20;58
A close interaction be between two different species, in which one species benefits and
the other is unaffected, is called - Answers -commensalism
The change in genetic composition of a population over time is called: - Answers -
evolution
A null hypothesis is used as a statement that an experiment must disprove. A scientist
wished to test whether fish species A prefers cold water over warm water. Which of the
following is the best null hypothesis for the experiment? - Answers -Fish A has no
preference for cold water over warm water
Atmospheric convection currents are caused by - Answers -the unequal heating of the
Earth by the Sun, and the tendency of warm air to rise
Environmental justice is - Answers -a social movement that works toward equal
enforcement of environmental laws in poor communities
Evidence of biodiversity is seen most directly in the - Answers -number of species in a
region
Which type of species would be most vulnerable to environmental changes? - Answers
-Niche specialists
A hypothesis must be - Answers -testable
, What is a positive effect of upwelling? - Answers -it creates an area of high nutrient
levels along the coast
Which type of population distribution can enhance protection from predators? -
Answers -clumped distribution
An individuals ecological footprint is - Answers -a measure of the total amount of land
required to the support that person's lifestyle
Organisms that eat dead or decaying matter are called - Answers -scavengers
An idea that has been repeatedly tested and confirmed by multiple groups of
researchers is called a - Answers -theory
Nitrogen fixation is a process - Answers -by which organisms convert nitrogen gas into
ammonia
Deforestation can result in - Answers -the rapid flow of water down mountains, leading
to increased erosion and flooding
Which of the countries presents the highest infant mortality rate? - Answers -Tanzania
Which of the following correctly lists substances from highest to lowest PH? - Answers -
household bleach--> seawater--> rainwater--> stomach fluid
Which element is the most abundant in the atmosphere? - Answers -Nitrogen
Which of the following countries has the highest ecological footprint per capita? -
Answers -United States
The limit to how many individuals the food supply can sustain is called - Answers -
carrying capacity of the environment
The phenomenon in which algae inside the coral dies is - Answers -called coral
bleaching
A species that plays a major role in determining the structure of its ecological
community is - Answers -a keystone species
When individuals are found to be distributed evenly throughout an ecosystem it is often
because - Answers -they are territorial
Solar radiation enters the Earth system, and energy leaves it in the form of heat and
reflected light. Therefore, with respect to energy, Earth is: - Answers -an open system
