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EnvironmentalScience
Semester Exam
Question | Answer |
---|---|
During what period did humans alter their habitats? | hunter-gatherer, Industrial Revolution, & agricultural revolution |
What was not a direct result of the industrial revolution? | overhunting of large mammals |
Which country's population is most likely to be increasing? | Kenya |
Using scientific information from chemistry and biology to devise a plan to clean up a lake and make it healthy again describes | Environmental science |
Why is the world's loss of biodiversity a source of concern? | Humans depend on other organisms for food and oxygen |
What is a biodegradable material that becomes a pollutant if allowed to accumulate more rapidly than it can decompose? | newspaper |
What describes the depletion of a renewable resource? | intensive cultivation of farmland that exhausts soil nutrients |
What does not involve environmental science? | asking people questions about the cost of various resources |
The fact that useful man-made substances can cause unforseen damage is illustrated by | the detection of Oscillatoria rubencens in Lake Washington, the condition of the atmosphere's protective ozone layer, and the pollution of the Gulf of Mexico's farm chemicals |
What country is most likely to have either a stabalized or slowly growing population? | Canada |
The classification and collection of data that are in form of numbers is called | statistics |
The group that does not receive the experimental treatment in an experiment is the | control group |
In an experiment,the factor of interest is called the | variable |
The average mass of a wolf in a pack of wolves is an example of | mean |
A model of a dinosaur is an example of what kind of model? | physical |
THe chance that an earthquake will occur in your town during the next year is an examlpe of what? | risk |
WHich step in the experimental method are scientists conductin when they photograph birds in flight? | observing |
Before you can make a decision using a decision-making model, what step must you make? | Gather Information |
Curiosity and imagination are important in science because they are | abilities in scientists that help expand our knowledge |
What essential characteristic does a good experiment have? | A single variable is tested and a control is used |
What is not one of the compositional layers of Earth? | mesophere |
Ozone is a molecule made up of | 3 oxygen atoms |
The most abundant gas in Earth's atmosphere is | nitrogen |
A fault is a break in the Earth's | crust |
How did the Himalaya Mountains form? | coliding tectonic plates |
The boundry between warm and cold water in an ocean or lake is | thermocline |
Volcanoes occur at tectonic plate boundaries that are | coliding and seperating from one another |
Deep currents flow along the | ocean floor |
The Richter scale best describes the | magnitude of an earthquake |
With resepct to matter Earth is mostly | a closed system |
The ozone layer is located in the | stratosphere |
The energy in most ecosystems from what? | the sun |
Which animal is successful because it moves quickly, reproduces rapidly, and has a waterproof external skeleton? | ants |
What algae's use energy from the sun to make food? | seaweed, phytoplankton, and giant kelp |
What describes soil and temperature in an ecosystem? | Abiotic factors |
One way that bacteria and fungi are important to the environment is that they | break down dead organisms |
If an insect can no longer be killed by a particular insecticide, it has developed what? | resistance |
Most bacteria including the kinds that cause disease and those found in garden soil, belong to what kingdom? | eubacteria |
The intial source of food in most ocean and freshwater ecosystems is | phytoplankton |
The intial source of food in most land ecosystems is | plants |
Pine trees and other conifers are classified as what because they are woody plants, the seeds of which are not enclosed in fruits? | gymnosperms |
Biomes with higher temperatures and less percipitation tend to have | shorter and denser vegetation |
The main factor that determines what type of plants grow in a biome is | temperature and precipitation |
Tropical rain forests are threatened by | deforestation and the trade of rain forest plants and animals |
If you visited a savanna, you would likely see | large herds of grazing animals such as rhinos, gazelles, and giraffes |
Which of the following is located primarily in coastal areas that have Mediterranean-style climates with warm dry summers and mild wet winters? | chaparral |
The deforestation of the rain forests may cause climate changes which in turn may affect | habitat destruction |
The tundra | has a layer of soil that is permanetly frozen beneath the top soil |
Which of the following adaptions are used my animals of the Artic tundra? | rodents burrow underground for winter protection |
biomes | are usually described by their vegetation |
The distance north or south of the equator as meausred in degrees is called | latitude |
What are the two main types of freshwater wetlands? | marshes and swamps |
What adaptation prevents phytoplankton from sinking into deep water? | flagella |
Estuaries are very productive ecosystems because they receive fresh nutrients from | rivers and oceans |
Swamps are commonly found on | flat,poorly drained land |
What causes most coastal pollution in the United States? | Industrial waste and sewage |
The types of organisms found in a pond or lake depend on | the presence of nutrients temperature, the amount of sunlight available |
As they flow down a mountain to flatter ground, rivers generally become | slower, warmeer, and wider |
The majority of marine organisms are found in | shallow coastal waters |
Which of the following is not an environmental function of wetlands | increasing runoffs |
Estuaries | are ecosystems where both fresh water and salt water are present |