A hypothesis is supported by more scientific observation and research than a theory.
Answer the following statement true (T) or false (F)
False
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The main oil-producing country of Western Africa is
A. Ghana B. Cote d'Ivoire C. Nigeria D. Niger
Photosynthesis removes this gas from the atmosphere: ________
Fill in the blank(s) with the appropriate word(s).
If a chemist wishes to carry out a reaction in which one reactant is a solid and one is a liquid, which of the following will be most effective in speeding up the reaction?
A) adding more liquid reactant B) grinding the solid to a form a powder C) placing a larger crystal of the solid in the same volume of liquid reactant D) All of the above will be equally effective.
A drawback of aquaculture in net pens is ________.
A. escape of exotic species into new ecosystems. B. increased disease transmission between the farmed fish and the native fish in the area. C. increased feces and waste in localized shoreline area. D. All of these are correct.