3.1 people per square kilometre
 
        
                    
             
        
        
        
Answer:  Gadsden Purchase, 1853–1854. ... Gadsden's Purchase provided the land necessary for a southern transcontinental railroad and attempted to resolve conflicts that lingered after the Mexican-American War .
Explanation:
 
        
                    
             
        
        
        
I believe the answer is: character
In leadership, character refers to the The way you act/use your position as a leader. This would include things such as your integrity, the ethical standard that you create for the organization, your self-awareness, your empathy toward other group members, your emotional health, etc.
        
             
        
        
        
Answer:
Warring States Period
Explanation:
the WSP was an area in ancient Chinese history characterized by warfare, as well as bureaucratic and military reforms and consolidation. I hope this helps. 
 
        
             
        
        
        
anxiety
/aŋˈzʌɪəti/
Learn to pronounce
noun
noun: anxiety; plural noun: anxieties
    1.
    a feeling of worry, nervousness, or unease about something with an uncertain outcome.
    "he felt a surge of anxiety"
    h
    Similar:
    worry
concern
apprehension
apprehensiveness
consternation
uneasiness
unease
fearfulness
fear
disquiet
disquietude
perturbation
fretfulness
agitation
angst
nervousness
nerves
edginess
tension
tenseness
stress
misgiving
trepidation
foreboding
suspense
butterflies (in one's stomach)
the willies
the heebie-jeebies
the jitters
the shakes
the jumps
the yips
collywobbles
jitteriness
jim-jams
twitchiness
the (screaming) abdabs
Joe Blakes
worriment
h
Opposite:
calmness
serenity
    Psychiatry
    a nervous disorder marked by excessive uneasiness and apprehension, typically with compulsive behaviour or panic attacks.
    "she suffered from anxiety attacks"
2.
strong desire or concern to do something or for something to happen.
"the housekeeper's eager anxiety to please"
h
Similar:
eagerness
keenness
desire
impatience
longing
yearning