« previous next »

Author Question: Currently, the greatest supply of natural gas in the United States is A) associated with ... (Read 22 times)

KimWrice

  • Hero Member
  • *****
  • Posts: 579
on: Jul 16, 2018
Currently, the greatest supply of natural gas in the United States is
 
  A) associated with petroleum deposits.
  B) in gas-rich shale.
  C) obtained by chemically converting petroleum into methane.
  D) in deposits of coal lying under Arizona and California.

Question 2

Which of the following best describes ecotones?
 
  A) They contain only species found in the bordering ecosystems.
  B) They have the same abiotic characteristics as the bordering ecosystems.
  C) They consist of many distinct landscapes.
  D) They are transitional regions between ecosystems and may contain unique species.


britb2u

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 16, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Dentition, as illustrated in Knight's Sketches in Natural History Dentition, as illustrated in Knight's Sketches in Natural History
Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th
In the past year, about one in five adults in the United States reported symptoms of anxiety ... In the past year, about one in five adults in the United States reported symptoms of anxiety ...
Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012 Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012
Created Equal: A Social and Political History of the United States, Brief Edition Created Equal: A Social and Political History of the United States, Brief Edition
Blood Supply to the Lungs Blood Supply to the Lungs
Video: Fetal development - Weeks 9 to 38

For a complete list of videos, visit our video library