Answer:
Submarine warfare in the Atlantic kept tensions high, and Germany’s sinking of the British ocean liner Lusitania on May 7, 1915, killed more than 120 U.S. citizens and provoked outrage in the U.S. In 1917, Germany’s attacks on American ships and its attempts to meddle in U.S.-Mexican relations drew the U.S. into the war on the side of the Allies. The United States declared war on Germany on April 6, 1917.
Explanation:
Answer: c) availability of employment opportunity
Explanation:
According to Karl Marx theory which describes that employment opportunity plays a major role in population growth.Increment in population is impacted through capitalist system .Reduction in incentives and wages or low employment chances tend to increase the fertility rate according to the theory and thus population tends to increase.
Other options are incorrect because food supply , family structure and resource requirement does not act a a factor for determining population growth as per Karl Marx theory. Thus, the correct option is option(c).
Answer:
The seminar is about safety and only topics that deals with safety issues and how to protect yourself will be included in the topic.
Protection against second-hand smoke
: Second-hand smoke is very dangerous to health and is a health issue. Teaching children how to protect themselves against it will be a good safety topic.
Providing helmets before riding a bicycle
: Once again, one can fall from a bicycle and sustain a head injury. However, using a helmet can protect them against such injuries and thus this is a good topic to be included.
Using appropriate restraints in motor vehicles: In case of accidents, appropriate motor restraints can save someone a great deal. If not done, this can lead to injury or death in the case of an accident. Thus this is a great topic for a safety seminar
The other options has nothing to do with guaranteeing safety.
Explanation:
The transcontential railroad is a prime example.
