Question and answer
Question not found
Ask a question
Not a good answer? Get an answer now. (Free)
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
Who is the closest relative to modern humans? User: People living in _____ tend to eat a diet that is high in carbohydrates.
Weegy: People living in poverty tend to eat a diet that is high in carbohydrates. User: What appeared on Earth first? Weegy: earth sciences Question: When Did Water First Appear On Earth? 4 billion years ago water appeared on the Earth science are learning more about it ... [ ] (More)
Question
Expert Answered
Asked 6/8/2011 9:11:42 AM
0 Answers/Comments
Electrons spin in shells around the nucleus. The closest shell (n = 1) can contain a maximum of _____ electrons?
Question
Updated 8/4/2011 12:24:27 PM
1 Answer/Comment
que
Added 8/4/2011 12:24:27 PM
This answer has been added to the Weegy Knowledgebase
Why is external criticism so important when it comes to analyzing data?
Question
Updated 11/9/2011 5:10:39 PM
1 Answer/Comment
shut up
Added 11/9/2011 5:10:40 PM
shut up
Added 11/9/2011 5:10:40 PM
The Mesopotamia region was famous for what architecture? User: One example of a moral code would be _____.
Weegy: Code of Hammurabi (More)
Question
Expert Answered
Asked 6/9/2011 8:25:10 AM
0 Answers/Comments
In what ways did the plow benefit societies? User: In what ways did the plow benefit societies?
Question
Not Answered
Updated 6/9/2011 11:02:04 AM
1 Answer/Comment
Agriculture and the plow originated 10–13 millennia ago in the Fertile Crescent of the Near East, mostly along the Tigris, Euphrates, Nile, Indus and Yangtze River valleys, and were introduced into Greece and southeastern Europe 8000 years ago. The wooden plow, called an ard, evolved into the “Roman plow”, with an iron plowshare, described by Virgil around 1 ad and was used in Europe until the fifth century. It further evolved into a soil inverting plow during the 8th to 10th century. In the U.S., a moldboard plow was designed by Thomas Jefferson in 1784, patented by Charles Newfold in 1796, and marketed in the 1830s as a cast iron plow by a blacksmith named John Deere. Use of the plow expanded rapidly with the introduction of the “steam horse” in 1910 that led to widespread severe soil erosion and environmental degradation culminating in the Dust Bowl of the 1930s. A transition from moldboard plow to various forms of conservation tillage began with the development of 2,4-D after World War II. No-till is presently practiced on about 95 million hectares globally. No-till technologies are very effective in minimizing soil and crop residue disturbance, controlling soil evaporation, minimizing erosion losses, sequestering C in soil and reducing energy needs. However, no-till is effective only with the use of crop residue as mulch, which has numerous competing uses. No-till farming can reduce yield in poorly drained, clayey soils when springtime is cold and wet. Soil-specific research is needed to enhance applicability of no-till farming by alleviating biophysical, economic, social and cultural constraints. There is a strong need to enhance sustainability of production systems while improving the environmental quality.
Added 6/9/2011 11:02:04 AM
18,059,252 questions answered
Popular Conversations
How would you rewrite the equation 2x + 4y + 2 = 3y + 5 in general ...
Weegy: FOIL (First Outside Inside Last) = 2x(2x) + 2x(-3y) + (-3y)(2x) + (-3y)(-3y) = 4x^2 + (-6xy) + (-6xy) + ...
10/30/2014 6:28:25 PM| 4 Answers
Solve the following equation. x + 6 = x + x 2 6 14 72 User: ...
Weegy: I'm sorry, do you have a question I can help you with today? User: Solve for A. BA + C = D A = D - B - C A ...
10/30/2014 9:06:00 AM| 3 Answers
What is the slope of the line that has the equation 4x + 2y = 12?
Weegy: The slope of the line that has the equation 4x + 2y = 12 is -2. User: What is the y-intercept of the line ...
10/30/2014 6:21:18 PM| 3 Answers
Prior to the Seventeenth Amendment, who chose the members of the US ...
Weegy: Prior to the Seventeenth Amendment, State legislatures chose the members of the US Senate. User: Prior to ...
10/30/2014 7:05:25 AM| 2 Answers
______________ means to enclose something tightly, such as is done ...
Weegy: Embedding means to enclose something tightly, such as is done with stones or tiles, and a filler, when creating ...
10/30/2014 7:30:45 AM| 2 Answers
In a plane, if two lines are perpendicular to the same line, then ...
Weegy: Two lines parallel to the same plane are parallel to each other. TRUE. User: Congruent triangles are any two ...
10/30/2014 8:12:29 AM| 2 Answers
Weegy Stuff
S
L
1
1
1
1
L
1
L
Points 3275 [Total 15650]| Ratings 0| Comments 3275| Invitations 0|Offline
S
L
1
L
P
C
1
P
C
1
L
Points 2163 [Total 11644]| Ratings 5| Comments 2113| Invitations 0|Online
S
1
L
1
L
P
P
L
Points 1114 [Total 13343]| Ratings 1| Comments 1104| Invitations 0|Offline
S
L
Points 888 [Total 2287]| Ratings 0| Comments 888| Invitations 0|Offline
S
Points 695 [Total 696]| Ratings 7| Comments 625| Invitations 0|Offline
S
1
L
L
Points 567 [Total 6361]| Ratings 3| Comments 537| Invitations 0|Offline
S
Points 482 [Total 482]| Ratings 0| Comments 452| Invitations 3|Offline
S
Points 480 [Total 480]| Ratings 1| Comments 470| Invitations 0|Online
S
L
Points 79 [Total 1296]| Ratings 1| Comments 69| Invitations 0|Offline
S
1
Points 67 [Total 685]| Ratings 0| Comments 67| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.