Autotrophs are responsible for _______________ productivity

Fill in the blank(s) with correct word


primary

Environmental & Atmospheric Sciences

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Most of the population of sub-Saharan Africa relies on ________ as their main energy source

A) coal B) hydropower C) wood D) dung E) animals

Environmental & Atmospheric Sciences

This map shows contours of the water table, the location of four factories (labeled A, B, C, and D), and contaminated and uncontaminated wells. Which way will the contamination flow?

A. northwest and southeast, parallel to the contours B. northeast, up the contours C. impossible to tell because the movement of contamination is independent of groundwater D. southwest, down the contours

Environmental & Atmospheric Sciences

Which toxic chemical is produced by the burning of wood?

a. Cyanide b. Acetic acid c. Copper chlorate d. Organic peroxide

Environmental & Atmospheric Sciences

The former Portuguese colony of Macau, reclaimed by China, derives a major percentage of its revenue from what industry?

A) rice exports B) medical supplies C) heavy machinery production D) IT software development E) gambling

Environmental & Atmospheric Sciences