Environmental Test 1 review

Pick the best definition for environmental science

• an approach to the overpopulation that brings the people of all nations together.

• an approach to informing people about issues of environmental concern

• an interdisciplinary field of study that includes biology, chemistry, geology, politics, economics, and ethics.

• risk management in the face of environmental problems.

What do we mean by the term, environment?

• all of the living organisms in an area

• all of the non-living components of the surroundings

• everything that affects an organism during its lifetime

• the social or cultural conditions that affect an individual

• could be all of these!

The reintroduction of wolves in Yellowstone National Park

• has resulted in decline in the elk population

• has resulted in a rise in the population of trees that elk eat

• has resulted in an increase of songbird populations that inhabit trees eaten by elk

• has resulted in an increase of the predators of song birds

• all of the above

Who wrote Silent Spring, a book about the decrease in bird populations due to the use of DDT that began the modern era of environmentalism?

• John Muir

• Rachel Carson

• Aldo Leopold

• Gifford Pinchot

How many people are there? Just take your best guess and if you get it wrong, try again.

• about 18 billion

• about 700 million

• about 2 billion

• about 8 billion

• about 1 billion

At the current rate of growth, when will the human population be 9 billion?

• It's already 9 billion

• in about 2075

• between 2035 and 2040

• in about 2100

• 2200

People who live on $1.90 per day can afford

• Rice, vegetables, and meat twice a day plus medicine if needed

• All the food they can eat, but not much else

• Rice and vegetables twice a day, but no meat, and there is only a dime left per day for other needs

• Pretty much what you could afford here on $20 per day

The activity of the scientific method that sets science apart from many other human endeavors is _________ .

• making careful observations and keeping careful records.

• formulating theories that lead to natural laws.

• formulating hypotheses

• experimental testing to support or disprove hypotheses.

The usual order of the scientific process is

• predictions --- experiment -- observation -- hypothesis

• experiment --

  observation --

  predictions

  experiment

• hypothesis --

  observation --

  experiment --

  conclusion

• observation --

  hypothesis--

  experiment --

  conclusion

Which one of the following is the best hypothesis?

• Corals grow faster in warmer water.

• Warm water has a positive effect on coral growth.

• Corals grown in 25 degrees Celsius grow faster than corals grown in 20 degrees Celsius.

• Coral growth depends on water temperature.