I think it is a. <span>Albert Einstein
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A. The US made the Gadsden Purchase.
The US never sold Texas. US won the war. Mexican cession was the US taking land.
A corduroy road<span> or </span>log road<span> is a type of </span>road made by placing logs<span>, perpendicular to the direction of the </span>road<span> over a low or swampy area. The result is an improvement over impassable mud or dirt </span>roads<span>, yet rough in the best of conditions and a hazard to horses due to shifting loose </span>logs<span>.</span>
Answer A ::::Due to Global Warming,its getting more difficult to do farming in Australia.That is why number of farms and number of farmers has decreased over the years.Second reason for decrease of farmers is more machines being used farming .
Answer B ::::(1) global warming
(2 ) mechanisation/more machines
Answer C :::::Benefit : modern farming technique and equipments reduces the need of extra labors which was required earlier.
Disadvantage ::Australia does not Genetically Modified (GM) crops import from any country.Excessive use of chemicals by the use of machines has decreased fertility of the Australian soil.