Cyanobacteria are one of only a few organisms able to use nitrogen gas to make organic matter.

Answer the following statement true (T) or false (F)


True

Environmental & Atmospheric Sciences

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The Apollo astronauts brought ________ rocks back to the Earth.

A. comet B. asteroid C. Mars D. Venus E. moon

Environmental & Atmospheric Sciences

Dumping lawn clippings into a stream will reduce this

A. biochemical oxygen demand. B. flow rate. C. dissolved oxygen. D. dissolved nitrogen.

Environmental & Atmospheric Sciences

The Appalachian Mountains are famous for their ______ structure.

a - volcanic b - ridge and valley c - faulted d - graben e - rift valley

Environmental & Atmospheric Sciences

As the sugars are broken down in the cells of living creatures, the energy returns to the atmosphere through the process of ________

A) evapotranspiration B) photosynthesis C) respiration D) transpiration

Environmental & Atmospheric Sciences