Answer:
Being open to the opinions of others
the answer is the first one. The global surface temperature average was significantly lower during the period from 1850 to 1910. I just took the test.
Homestead Act: <span>1862 law that gave 160 acres of land to citizens who met certain conditions.
land peculator: </span><span>Person who buys up large areas of land in the hope of selling them later for a profit.
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push-pull factors: <span>Events and conditions that either force (push) people to move elsewhere or strongly attract (pull) them to do so</span>