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The indian subcontinent

Peoples of the Indus Valley raised wheat, barley, peas, sesame seeds, mangoes, dates and citrus fruits on irrigated fields by 4,000 B.C. They used asses, horses, buffalo, camels and cattle both for meat and draft animals (Ref. 222 ) Woven cotton fabric was in the same valley by 3,000 B.C. Major sites have been unearthed in western India and Pakistan of the ethnic group called "Brachycephals", who were widely scattered throughout Sind, Baluchistan and Rajasthan, with elaborate settlements, using copper and bronze by 39000 B.C. Neolithic sites of cattle raising people living in villages of wattle and daub or mud huts have been excavated in the Ganges Valley and the southern peninsula, dating to the 4th millennium B.C. (Ref. 45 ) (Continue on page 89)

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calculate molarity of NaOH solution when 25.0ml of NaOH titrated with 27.2ml of 0.2m H2SO4
Gasin Reply
what's Thermochemistry
rhoda Reply
the study of the heat energy which is associated with chemical reactions
Kaddija
How was CH4 and o2 was able to produce (Co2)and (H2o
Edafe Reply
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Victory
First twenty elements with their valences
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asue Reply
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asue
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ThankGod Reply
Read Chapter 6, section 5
Dr
Read Chapter 6, section 5
Kareem
Atomic radius is the radius of the atom and is also called the orbital radius
Kareem
atomic radius is the distance between the nucleus of an atom and its valence shell
Amos
Read Chapter 6, section 5
paulino
Bohr's model of the theory atom
Ayom Reply
is there a question?
Dr
when a gas is compressed why it becomes hot?
ATOMIC
It has no oxygen then
Goldyei
read the chapter on thermochemistry...the sections on "PV" work and the First Law of Thermodynamics should help..
Dr
Which element react with water
Mukthar Reply
Mgo
Ibeh
an increase in the pressure of a gas results in the decrease of its
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definition of the periodic table
Cosmos Reply
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what were atoms composed of?
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Source:  OpenStax, A comprehensive outline of world history. OpenStax CNX. Nov 30, 2009 Download for free at http://cnx.org/content/col10595/1.3
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