Which of the following statements about agricultural societies is true?
answer
Agricultural societies had a higher population than hunter-gatherer societies.
question
Which of the following poses the greatest risk for species extinction?
answer
expansion of human cities
question
Environmental engineers minimize the impact of land development on the environment.
answer
true
question
Environmental scientists are unconcerned with methods to preserve natural resources.
answer
False
question
Observation of tool-making among chimpanzees was revolutionary primarily because scientists believed _______.
answer
tool-making was a defining characteristic of humans
question
Every fall, clusters of hundreds of Danaus plexippus, or Monarch butterflies, migrate into Mexico. The traveling group of D. plexippus is one example of a(n) _______.
answer
species
question
Most animals are producers, meaning they are able to create their own food from inorganic sources.
answer
False
question
An individual who interprets laws related to the environment most likely works in which field?
answer
Environmental law
question
Describe the job of an environmental scientist.
answer
The main job of an environmental scientist is to identify and address pollution and environmental problems. They monitor the air, water, and soil to help make sure it is all safe and clean.
question
Explain the method scientists use to study how Earth's atmosphere and climate have changed during the past million years.
answer
Scientists first collect ice cores from deep under the arctic and antarctic ice shelves. Next they measure the concentrations of gasses trapped in the ice to determine how long ago the ice was formed and what the composition of the atmosphere was like at the time. These ice cores are like little time capsules showing what Earth's atmosphere and climate were like in the past.
question
Give two examples of producers and two examples of consumers.
answer
Producers are any organism that does not need another organisms for energy. This would include photosynthetic organisms, usually plants. Consumers must eat other organisms, and are generally animals.
question
Contrast environmental science and ecology.
answer
Ecology is the study of all of the organisms in an environment. Environmental science, however, is the study of the interrelatedness of ALL of the components of an environment.
question
Entomology is the study of _______.
answer
insects
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