Answer:
the correct answer should be A.
Explanation:
They can use the chemical composition and the texture to determine its type
Answer:
B. extraction
Explanation:
<u>In order to get oil for use, it needs to be extracted from under the ground.</u> Once the oil is located, the oil well is placed on the location. <u>The ground is drilled and the oil is popped out of the earth.</u>
While all the points in the oil handling process can be dangerous to the environment, <u>extraction has the biggest effect on the land and the sea as it can easily result in spills.</u> Oil spills affect many years later and are risky for the animals and plants. This way, the ecosystem is affected and the environment is hurt, impacting pollution and climate change.
Answer:
Westward expansion meant that the US acquired ever increasing amounts of land, and needed people, farmers, to settle there so it could maintained without a huge military presence. This led to massive immigration in the second half of the 19th century, as mostly Europeans came here seeking to finally have their own land.
It also added vast resources to the United States, both in terms of potential agricultural production and things like gold, silver and timber.
It stimulated the construction of the Transcontinental Railroad, and added new states to the country.
It further aggravated the divide between north and south, and accelerated the onset of the Civil War.
Explanation:
