Judge the following sentence according to the criteria given below: It is advantageous for fishers to choose a population that feeds as close to the primary producing population as possible BECAUSE energy transfer between trophic levels is
inefficient. A) The assertion and the reason are both correct, and the reason is valid.
B) The assertion and the reason are both correct, but the reason is invalid.
C) The assertion is correct, but the reason is incorrect.
D) The assertion is incorrect, but the reason is correct.
E) Both the assertion and the reason are incorrect.
A
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Which of the following statements about net energy is false?
a. Some forms of energy have a higher net energy ratio than others. b. The useable amount of high-quality, useful energy available from a given quantity of energy resource is called its net energy yield. c. All forms of energy supply the same amount of net energy yield. d. Both the first and second laws of thermodynamics govern the use of fossil fuels and other energy resources. e. Only the first law of thermodynamics governs the use of fossil fuels and other energy resources.
Costa Rica has no active volcanoes
Indicate whether the statement is true or false
Which statement is true about green taxes?
A. Seventy percent of voters support green taxes when they are explained. B. The U.S. Congress has introduced and passed green taxes under pressure from lobbyists. C. Green taxes fail reduce pollution and greenhouse gas emissions. D. Green taxes reduce economic competitiveness. E. Green taxes cost jobs.
How many unpaired electrons are there in a fluorine atom in its ground state?
A) 1 B) 3 C) 5 D) 7