« previous next »

Author Question: Which of the following statements about biodegradable polymers is true? A) They will degrade ... (Read 30 times)

sam.t96

  • Hero Member
  • *****
  • Posts: 570
on: Aug 27, 2018
Which of the following statements about biodegradable polymers is true?
 
  A) They will degrade quickly in a landfill.
  B) Thermosetting polymers are biodegradable, but thermoplastics are not.
  C) They often require specific temperatures or the presence of microorganisms in order to undergo degradation.
  D) Polyvinyl chloride is a biodegradable polymer.

Question 2

The fact that a heat pump requires energy to move heat from a colder object (the outside of a house) to a hotter object (the inside of the house) is a real life observation of which thermodynamic law?
 
  A) the first law
  B) the second law
  C) the third law
  D) the fourth law


BUTTHOL369

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

true story true story
Adapoids and omomyoids had longer snouts and are the first “true” primates. Adapoids and omomyoids had longer snouts and are the first “true” primates.
Which is TRUE about the alternation of generations cycle that is diagramed above? Which is TRUE about the alternation of generations cycle that is diagramed above?
Examples of Mission Statements Examples of Mission Statements
True Dover Sole True Dover Sole
Midsagittal section indicating locations of true and false pelves Midsagittal section indicating locations of true and false pelves
Video: Segmentation and migrating motility complexes & Gastroileal reflex

For a complete list of videos, visit our video library