Which statement best explains why the transcontinental railroad took several years to build? digging through mountains was difficult, and harsh weather slowed progress. several civil war battles took place nearby and kept work from progressing. congress fought over funding for the railroad, leading to work stoppages. immigrants were not interested in railroad work, which made it hard to fill jobs.

Digging through the mountains was very difficult, and the long winters hampered workers' ability to make progress.

Digging through mountains was difficult, and harsh weather slowed progress.

Explanation:

The cross-country railrold took quite a while to build because burrowing through the mountains was troublesome, and the long winters hampered worker's ability to gain ground. The lower regions of Sierra Nevada, the winter snowtorms, lack of solid work and expanding requirement for burrowing hampered the advancement as they went higher in the mountains.

the answer as multiple choice is c

africa, the second-largest continent, is bounded by the mediterranean sea, the red sea, the indian ocean, and the atlantic ocean. it is divided in half almost equally by the equator. the continent includes the islands of cape verde, madagascar, mauritius, seychelles, and comoros.

africa’s physical geography, environment and resources, and human geography can be considered separately.

the origin of the name “africa” is greatly disputed by scholars. most believe it stems from words used by the phoenicians, greeks, and romans. important words include the egyptian word afru-ika, meaning “motherland”; the greek word aphrike, meaning “without cold”; and the latin word aprica, meaning “sunny.”

today, africa is home to more countries than any other continent in the world. these countries are: morocco, western sahara (morocco), algeria, tunisia, libya, egypt, sudan, chad, niger, mali, mauritania, senegal, the gambia, guinea-bissau, guinea, sierra leone, liberia, côte d’ivoire, ghana, burkina faso, togo, benin, nigeria, cameroon, central africa republic, equatorial guinea, gabon, congo, democratic republic of the congo, angola, namibia, botswana, south africa, lesotho, swaziland, mozambique, zimbabwe, zambia, malawi, tanzania, rwanda, burundi, uganda, kenya, somalia, ethiopia, djibouti, eritrea and the island countries of cape verde, madagascar, mauritius, seychelles, and comoros.

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