ESRM 100 EXAM 1 QUESTIONS & ANSWERS
The subject of this course is _________? - Answers -Environmental Science
Elements that gain or lose electrons to form compounds create: - Answers -Ionic bonds
Which group of organisms performs photosynthesis? - Answers -Autotrophs
Historically, _________ has/have kept the world population out of food deficit. -
Answers -innovations in agricultural practices
The cohesion of water molecules results from: - Answers -hydrogen bonding between
water molecules
The number of species in a given area such as a pond, tree canopy, or plot of soil, is
known as _________. - Answers -species richness
A null hypothesis is used as a statement that an experiment must disprove. A scientist
wishes 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.
An ecosystem is a location on Earth that includes: - Answers -interacting living and
non-living components.
Accuracy refers to: - Answers -how close a measured value is to the actual value.
Primary succession would mostly take place on (or in) a: - Answers -Fresh lava rock
The predictable replacement of one group of species by another group of species over
time is called: - Answers -ecological succession
The upper layer of water that receives enough sunlight to allow photosynthesis is the: -
Answers -photic zone
The surface tension of water results from: - Answers -cohesion of water molecules at
the surface
During what stage of the hydrologic cycle is water released to the atmosphere from
plants? - Answers -Transpiration
All organisms perform: - Answers -respiration
, A species that plays a major role in determining the structure of its ecological
community is: - Answers -a keystone species
The difference between potential and kinetic energy is that: - Answers -potential energy
has not yet been released
Which of the following statements best describes the concept of Gross Primary
Production (GPP)? - Answers -Total amount of solar energy that producers capture via
photosynthesis
The poorest _________% of the world's people consume approx. _________% of the
world's energy, paper, fish, and meat. - Answers -20; 5
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
Why do areas near large bodies of water have moderate climates? - Answers -It takes
a lot of energy to change the temperature of water due to hydrogen bonding
Organisms that eat dead or decaying matter are called: - Answers -scavengers
Most molecules in the bodies of organisms contain: - Answers -carbon
When humid winds blowing inland from the ocean meet a mountain range, cold and dry
air descends on the leeward side of the mountains, forming a region called: - Answers -
a rain shadow
Environmental justice is: - Answers -a social movement that works toward equal
enforcement of environmental laws in poor communities
Which element is the most abundant in the atmosphere? - Answers -Nitrogen
At present, Earth's human population is: - Answers -increasing exponentially
The movement of water through the biosphere is known as: - Answers -the hydrologic
cycle
Which of the following is a biotic factor? - Answers -Producers
Population growth rates are high in developing countries because: - Answers -children
are often an important economic advantage
Which of the following countries presents the highest infant mortality rate? - Answers -
Tanzania
The subject of this course is _________? - Answers -Environmental Science
Elements that gain or lose electrons to form compounds create: - Answers -Ionic bonds
Which group of organisms performs photosynthesis? - Answers -Autotrophs
Historically, _________ has/have kept the world population out of food deficit. -
Answers -innovations in agricultural practices
The cohesion of water molecules results from: - Answers -hydrogen bonding between
water molecules
The number of species in a given area such as a pond, tree canopy, or plot of soil, is
known as _________. - Answers -species richness
A null hypothesis is used as a statement that an experiment must disprove. A scientist
wishes 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.
An ecosystem is a location on Earth that includes: - Answers -interacting living and
non-living components.
Accuracy refers to: - Answers -how close a measured value is to the actual value.
Primary succession would mostly take place on (or in) a: - Answers -Fresh lava rock
The predictable replacement of one group of species by another group of species over
time is called: - Answers -ecological succession
The upper layer of water that receives enough sunlight to allow photosynthesis is the: -
Answers -photic zone
The surface tension of water results from: - Answers -cohesion of water molecules at
the surface
During what stage of the hydrologic cycle is water released to the atmosphere from
plants? - Answers -Transpiration
All organisms perform: - Answers -respiration
, A species that plays a major role in determining the structure of its ecological
community is: - Answers -a keystone species
The difference between potential and kinetic energy is that: - Answers -potential energy
has not yet been released
Which of the following statements best describes the concept of Gross Primary
Production (GPP)? - Answers -Total amount of solar energy that producers capture via
photosynthesis
The poorest _________% of the world's people consume approx. _________% of the
world's energy, paper, fish, and meat. - Answers -20; 5
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
Why do areas near large bodies of water have moderate climates? - Answers -It takes
a lot of energy to change the temperature of water due to hydrogen bonding
Organisms that eat dead or decaying matter are called: - Answers -scavengers
Most molecules in the bodies of organisms contain: - Answers -carbon
When humid winds blowing inland from the ocean meet a mountain range, cold and dry
air descends on the leeward side of the mountains, forming a region called: - Answers -
a rain shadow
Environmental justice is: - Answers -a social movement that works toward equal
enforcement of environmental laws in poor communities
Which element is the most abundant in the atmosphere? - Answers -Nitrogen
At present, Earth's human population is: - Answers -increasing exponentially
The movement of water through the biosphere is known as: - Answers -the hydrologic
cycle
Which of the following is a biotic factor? - Answers -Producers
Population growth rates are high in developing countries because: - Answers -children
are often an important economic advantage
Which of the following countries presents the highest infant mortality rate? - Answers -
Tanzania
