"between 1980 and 2014, income inequality in the united states has increased in part due to expanding international trade. how does expanding international trade"?

See explanation below.

Explanation:

On this case we can conclude that the USA firms with this condition now can hire people with not qualifications anywhere in the planet, on this case this situation allos that the people from USA would be in competition with foreign workers.

And as a consequence we have that the wages sometimes are not equitative in som situations. And that's a competitiv situation on which the people from USA sometimes needs to accept lower wages in order to get a job in the country.  

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.

for your question the answer would have to be france