Argument A: When Sputnik II was launched into space, it carried a Russian dog named Laika, which became the first living mammal to orbit the earth. Since dogs commonly live for more than 10 years, it follows that Laika lived in space for nearly a decade before her death.
Argument A is and all true premises. Therefore, Argument A is .

Argument B:

Every globe shows that the United States is in the Southern Hemisphere. Therefore, next year most American cities will probably be colder in July than in January.
Argument B is and all true premises. Therefore, Argument B is :-

Argument C:

Trains and airplanes are both popular ways to travel across the country. Since you can purchase a cabin in a sleeping car on a transcontinental railroad trip, it follows that there are sleeping cabins available on most transcontinental airline flights.

Argument C is and all true premises. Therefore, Argument C is .

Argument D:
Since there have never been any major earthquakes in the San Francisco Bay Area, it is unlikely that there will be a major earthquake in the San Francisco Bay Area anytime soon.

Argument D is and _ all true premises. Therefore, Argument D is .

Solution :

Argument A

Argument A is weak  as it is not necessary that the dog, Laika was in the space for 10 years only because a dog's life span is 10 years.

As the argument is weak, it does not have all the true premises. Hence argument A is uncogent.

Argument B

The argument B is weak as the United States is located in the Northern hemisphere and not in the Southern hemisphere. Therefore, it does not have the true premises and the argument is uncogent.

Argument C

The argument C is strong as most of the trains that moves transcontinental have a sleeping car or a cabin. So it does have all the true premises and the argument is cogent argument.

Argument D

The argument D is strong as there has never been any major earthquakes in the San Francisco Bay Area. But it does not have all the true premises as there can be a major earthquake any time in that area. So the argument is uncogent.

ne pare rău, dar când mi-am căutat întrebarea, doar avioanele au apărut .. deci, ar putea fi răspunsul, sau ar putea fi baloane cu aer cald, deoarece acestea pot conta și ca ambarcațiunile de aer, dar nu sunt complet sigur de asta. a fost doar o presupunere, sper că am ajutat, îmi pare rău dacă nu am făcut-o. de asemenea, folosesc traducerea google, pentru a traduce ceea ce spun în engleză, așa că îmi pare rău dacă gramatica sau chiar limba nu este corectă