An aquifer receives 40 m3 of precipitation and loses 10 m3 of water through natural movement. How much water can be pumped from the aquifer to balance the budget?

A. 10 m3
B. 20 m3
C. 30 m3
D. 40 m3

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.