This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In a modern society, approximately what percentage of human energy is used to produce food? A) 10 ... (Read 170 times)

schs14

  • Hero Member
  • *****
  • Posts: 569
on: Aug 27, 2018
In a modern society, approximately what percentage of human energy is used to produce food?
 
  A) 10
  B) 25
  C) 45
  D) 65

Question 2

Which of the following statements about ethylene and polyethylene is true?
 
  A) The polymer has the same properties as the monomer.
  B) The polymer has alternating double and single bonds between carbons, while the monomer has only single bonds between carbons.
  C) The polymer has alternating double and single bonds between carbons, while the monomer has only double bonds between carbons.
  D) The polymer has only single bonds between carbons, while the monomer has only double bonds between carbons.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

maaaaaaaaaa

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

D


schs14

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Aug 27, 2018
TY


maaaaaaaaaa

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Aug 27, 2018
You're welcome


« previous next »
 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

The work of Charles Darwin forms the foundation for modern evolutionary theory. The work of Charles Darwin forms the foundation for modern evolutionary theory.
Energy flow and chemical recycling in ecosystems. Energy flow and chemical recycling in ecosystems.
The Human Genetic Code The Human Genetic Code
Basic Food Groups and Their Major Nutrients (Continued) Basic Food Groups and Their Major Nutrients (Continued)
Gibs free energy for hydrolysis of some phosphate compounds Gibs free energy for hydrolysis of some phosphate compounds
Modern Cell Theory Modern Cell Theory
Video: Arthroscopy

For a complete list of videos, visit our video library