I’m not entirely sure I think the answer is c
Answer:
The elevator revolutionised the Vertical transportation and logistics. Prior to that, even though the usual transportation between places was developed mainly because of the advancements in the vehicle and naval transportation, moving things "up" and vertically was supper difficult. Mainly moving people.
The elevator allowed the development of the Skyscraper. Tall buildings that could house thousands of people and eventually that would become the symbol of America.
Explanation:
It nearly became extinct by a combination of commercial hunting and slaughter in the 19th century and introduction of bovine diseases from domestic cattle. With a population in excess of 60 million in the late 18th century, the species was down to just 541 animals by 1889.
Answer:
SYNONYMS FOR doubtful
1 undetermined, unsettled, indecisive, dubious, problematic. 2 unsure, indeterminate. 3 irresolute, vacillating, hesitant. 4 shady.
Explanation:
Unusual and terrifying themes.
