Porosity soil atmosphere - Study guides, Class notes & Summaries

What does the "Single-Point Resistivity Log" show and what area is it limited to? - ANSWER-A log that measures the resistivity using 2 electrodes and having a limited area of investigation of from 5 to 10 times the electrode diameter What is the "Area of Influence" of a well? - ANSWER-The area within which the potentiometric surface is lowered by withdrawal or raised by injection, of water through a well Define aquifer - ANSWER-A geologic unit that is saturated and sufficiently permeab...

Aquifer - answer-underground geologic unit that is saturated with water which contains sufficient permeability to yield the water to wells. Unconfined aquifer - answer-Water surface is at atmospheric pressures. Confined aquifer - answer-Aquifer that is confined by an impermeable material, such as clay or shale, resulting in the aquifer being under pressure. Permeability - answer-A measure of the ability to transmit fluids based on the material within the aquifer. Transmissivity - ans...

REHS exam 1. A factor or agent which increases the risk of cancer is known as a a. teratogen b. mutagen c. carcinogen d. fomite - ANS carcinogen;2. The four major causes of death among all age groups of Americans include all of the following except. a. homicide b. accidents c. malignant neoplasms d. heart disease - ANS homicide;3. In recent years, the largest number of rabies cases were associated with a. skunks b. bats c. dogs d. raccons. - ANS skunks;4. Asbes...

Class C Water Operator Texas Part 1 Exam Questions and Complete Solutions T/F The hydrological cycle is the natural exchange of water between the ocean and the atmosphere - Answer: True T/F 25% of the earths water is surface water, but only a small portion can be tapped by wells - Answer: Flase T/F Groundwater hydrology is the science concerned with the occurrence, distribution, and movement of water above the earths surface - Answer: False T/F Groundwater is the soil water that coll...

1. population composed of all individuals that belong to the same species and live in a given area at a particular time 2. community incorporates all of the populations of organisms within a given area 3. population ecolo- gy the study of factors that cause populations to increase or decrease 4. population size the total number of individuals within a defined area at a given time 5. population densi- ty 6. population distriu- tion the number of individuals per unit area (or v...

REHS_Big_Practice_Exams 1,2&3 Q&A Updated Spring 23/24. REHS REVIEW BIG PRACTICE EXAM 1: 1. The most important factors in the xmsn of waterborne disease is: A) indirect contact and virulence B) dosage and virulence C) direct contact and dosage D) fomite and pathogen 2. In many jurisdictions, what needs to be issued before a newly constructed building, structure, or business can be opened, used, or occupied? a. Eminent domain b. Deed to the property c. Certificate of use or occupancy d. Writ of h...

What does it mean when you have topographic contours on a 1:24,000 scale base map that are roughly circular and have hachures on the counters? - ANSWER-They represent a closed depression You have a base map at a scale of 1:6,000 and you need to represent the information you obtained during a field investigation of a site that is one square mile, that included mapping of your site as well as subsurface exploration results. What do you need to do to the map to make it work? - ANSWER-Use a large...

American Military University ERSC181 B001 ERSC181 week 4 quiz. 1/ Week 4 Exam (timed and single access) Return to Assessment List Part 1 of 3 - 20.0/ 20.0 Points Question 1 of 25 If a sedimentary rock is found to have grains of different shapes and sizes it is said to be what? 4.0/ 4.0 Points A. poorly cemented B. well sorted C. permeable D. poorly sorted Question 2 of 25 What is the classification of this sedimentary rock? 4.0/ 4.0 PointsA. clastic B. biochemical C. chemical ...

First Law of Thermodynamics - ANSWERSenergy is neither created nor destroyed, may be converted from one form to another. Second Law of Thermodynamics - ANSWERSwhen energy is changed from one form to another, some useful energy is degraded into lower quality energy (usually heat). Energy - ANSWERSthe ability to do work. Units of energy: joules, calories, kilocalories, British thermal units (BTUs), Kilowatt-hours (kWh) Power - ANSWERSthe rate of doing work (work/time). Units of power: wat...

9/25/2020 APUS CLE : ERSC181 I002 Sum 20 : Tests & Quizzes 4.0/ 4.0 Points 4.0/ 4.0 Points Week 1 Exam (timed and single access) Return to Assessment List Part 1 of 2 - Rock Forming Minerals 52.0/ 52.0 Points Question 1 of 25 Which subatomic particle is NOT found in the nucleus? A. proton B. neutron C. electron Feedback: 3.1.1 Question 2 of 25 Which of the following is considered to be composed of a mineral? A. coal B. your teeth C. glass (un-ordered atoms) D. lab-grown diamond...