Which of the following provide a mechanism for the transport of ions and polar molecules through a membrane?

A) active transport
B) specific channels
C) both a and b
D) neither a nor b


C

Environmental & Atmospheric Sciences

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To determine your specific impacts on the environment, you can ________

A) measure the volume and type of all the wastes you contribute to the municipal waste stream B) measure local air pollution and its impacts on your health C) determine your current water pollution impact D) calculate your ecological footprint E) calculate the biodiversity of your local community

Environmental & Atmospheric Sciences

Which type of biome is most susceptible to desertification?

A. grassland B. tundra C. tropical forest D. temperate forest

Environmental & Atmospheric Sciences

How many electrons are there in the third shell of sodium, Na (atomic number 11)?

A. none B. one C. two D. three

Environmental & Atmospheric Sciences

) By assimilating local elites and selected individuals into the norms of global capitalist and corporate culture, former colonies like Kenya still find themselves under the domination of the core in a process known as

A) Neocolonialism. B) Totalitarianism. C) Authoritarianism. D) Orientalism. E) Sectionalism.

Environmental & Atmospheric Sciences