When Pablo and Johanna write up their initial proposal, the instructor will probably ________
A) tell them to start over–it would take many years to do such a study
B) tell them that they need at least 100 dogs to do the study
C) give them an A for thoroughness, and allow them to proceed with the experiment
D) tell them they have a serious problem with the proposal, but it is fixable if they are willing to take care of more dogs
Read the following scenario, and answer the questions below.
THE EXPERIMENT:
Researchers wanted to determine whether pesticide Z is effective at killing grasshoppers that typically invade cornfields. Two 10-acre cornfields located 1 mile apart were chosen. The cornfield to the west was sprayed only with water. The cornfield on the east received the same amount of water with a 10% solution of pesticide Z. The number of grasshoppers in the fields was recorded every week for 10 weeks.
RESULTS:
The number of grasshoppers in the west field treated only with water doubled after 10 weeks.
The number of grasshoppers in the east field treated with pesticide Z declined by 50% after 10 weeks.
D
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Which of the following air conditions are indicated by a fanning shape plume rising from a smokestack?
A. inversion and unstable B. inversion and stable C. stable and neutral D. neutral and inversion
The term "El Niño" phenomena in December in Peru explains
A) warming of an otherwise cold current, which brings heavy rain and flooding. B) cooling of an otherwise cold current, which brings heavy rain and flooding. C) warming of an otherwise cold current, which brings high temperatures and drought. D) cooling of an otherwise warm current, which brings high temperatures and drought.
Which of the following issues would be addressed by a county's land use development office when making important environmental decisions?
A) building of a landfill B) managing a national park C) controlling air pollution from automobiles D) storage of nuclear wastes E) building of a new gas station in the county
Climate change involves
A. changes in precipitation. B. decreasing temperatures. C. increasing temperatures. D. All of the above.