After data have been analyzed, tentative explanations or solutions called ________ may be proposed.
A. a concept that has been tested reproducibly and is likely to be true
B. hypotheses
C. a proven law of nature
D. a guess
E. an observation of a phenomenon
Answer: B
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A well-trained member of the Peace Corps is asked to provide assistance to a village in India that suffers greatly from typhoid fever. The best long-term solution to reduce the cases of this disease in this village is to
A) encourage people to always wash their hands using antibacterial soap. B) clearly separate their sewage from drinking water sources. C) teach the people to cover their coughs and sneezes to avoid disease transmission. D) increase the amount of vitamin C and vitamin E in the diet of these villagers.
What was the result of the 1967 Six Day War?
A) the cessation of hostilities between Iran and Iraq B) Israel gained the Gaza Strip, the Golan Heights and the West Bank C) the defeat of Israel at the hands of a multilateral Arab invasion force D) Israel and Egypt signed a peace treaty in which they agreed to joint ownership of the Sinai Peninsula E) Israel was forced to surrender its claim over Jerusalem
Write an essay discussing tropical deforestation in Sub-Saharan Africa
Which countries in this region is deforestation especially problematic, and in which countries is it not so? What are the reasons for the differing rates of deforestation in these locations?
Coral and algae have a reciprocal relationship in which the algae perform photosynthesis, providing the coral with some nutrients and helping with the calcification process
In return, the coral provide the algae with certain nutrients and a place to live in a lighted environment. This is an example of a ________ relationship. A) predator/prey B) opportunistic C) symbiotic D) parasitic