The word that comes in the blank is "evolutionary".
Evolutionary explanations of aggression propose that aggression serves a vital capacity as far as both individual survival and in addition regenerative potential. Rivalry emerges when assets are constrained and creatures must contend with a specific end goal to survive and repeat.
Answer:
C. The Emancipation Proclamation freed slaves only in states that had seceded from the Union.
Explanation:
Basically, the work of a historians mostly relies on studying and examining different kinds of historical sources and using them to shed a light on historical events. Of course, this is only a brief and simplified summary of their job.
But the most important thing is that they need to use facts and factual evidence.
Only answer C results from examinations of a historical material source (The Emancipation Proclamation, a written document). In that way it presents a strong evidence, which can easily be checked and verified, that support the claim.
Other answers express only opinions, without providing any evidence, and as such should never be used by historians, especially answer D which is an example of a logical fallacy.
Answer:
correct option is B. the purity of a sample of gold
Explanation:
given data
expression = 24 karat
solution
As Karat is used with gold
and it is an measure of the unit of purity of gold
with 24 karat gold is an pure gold
pure gold is very soft so we mix silver or copper and that its each karat indicate that 
th of whole unit
so we can say correct option is B. the purity of a sample of gold
Answer:
D
Explanation:
oil has nothing to do with agriculture
