What marked the beginning of world war 1

On July 28, Austria/Hungary declared war on Serbia, and the weak peace between Europe's great powers quickly collapsed. Within a week, Russia, Belgium, France, Great Britain and Serbia had lined up against Austria/Hungary and Germany, and World War I had begun.

Explanation:

all persons entering into t

he employment of the compan

y, are considered as engaged

for twelve months, and those who leave

sooner, or do not comply with all these

regulations, will not be entitled

to a regular discharge.  

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."