How does the area of Earth's surface covered by oceans compare with the area covered by continents?
What will be an ideal response?
About 71% of Earth's surface is covered in oceans, compared to the remainder covered in continents.
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Bottled water
A. has fewer contaminants than water from a municipal water system. B. is always distilled. C. costs more than water from a municipal water system. D. None of these statements is correct.
Which of the following is a factor that contributes to higher numbers of female migrants?
A) Higher numbers of women in the destination workforce attract women. B) The only opportunities available are in domestic care which discourages male migrants. C) It is perceived by the sending country to be a brain drain if men migrate, therefore only women are allowed to leave. D) Women are willing to pay smugglers more to cross borders illegally. E) Men prefer that their wives migrate first to establish the first chain in chain migration.
Communication is a central characteristic of the
A. scientific action. B. material conference. C. scientific method. D. All of these are correct.
Humans have caused
A. the amount of carbon dioxide in the atmosphere to increase. B. the amount of oxygen in the atmosphere to increase. C. the amount of water in the global ocean to decrease. D. All of the above.