A rock layer that is porous and permeable and acts as a container and transmitter of water is called a(n) __________________
Fill in the blank(s) with correct word
aquifer
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Step 3 of the citric acid cycle involves the conversion of isocitrate to a-ketoglutarate. What is the intermediate species formed in this step?
A) fumarate B) oxaloacetate C) oxalosuccinate D) succinate
The two most abundant greenhouse gases in Earth’s atmosphere are ____________________ and ____________________
Fill in the blank with correct word.
Which of the following best matches the description?Substances released into the atmosphere, which in their unmodified form are a health risk.
A. greenhouse effect B. particulates C. oxides of nitrogen D. acid deposition E. ozone F. thermal inversion G. sulfur dioxide H. secondary air pollutants I. radon J. photochemical smog K. primary air pollutants
In ________, carbohydrates are broken down into CO2 and water when they combine with atmospheric oxygen
A) transpiration B) evaporation C) respiration D) carbonation E) evapotranspiration