What is the major threat to the Ogallala aquifer? Too much extraction and not enough recharge

Too much extraction and not enough recharge

Too much recharge and not enough extraction
Too much recharge and not enough extraction

Farms switching crops that are raised and harvested
Farms switching crops that are raised and harvested

Installation of water conservation devices

We can be sure that a mole of table sugar and a mole of vitamin c are equal in their 1) mass in daltons. 2) mass in grams. 3) number of molecules. 4) number of atoms. 5) volume.

How are agricultural practices used today

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.