"True" is the right answer. If there is a single broken yellow line, passing is permitted on both sides, when it's safe to do so. When passing, the driver must use the oncoming traffic lane.
The divorce rate in the country considerably climbed in the 1970s. Back then, getting a divorce was not as difficult and risky as it is today, so the effects were minimal. Statistics show that in 1970, 33% of married couples filed for divorce.
For the past thirty years, the divorce rate has been falling after reaching a peak in the 1970s and early 1980s. Compared to marriages that started in the 1970s and 1980s, which included around 65 percent of all marriages, about 70 percent of those that started in the 1990s (apart from those in which a spouse passed away) achieved their 15th anniversary. So far, divorce rates among those who were married in the 2000s are much lower.
According to research from Justin Wolfers, a University of Michigan economist, nearly two-thirds of marriages won't end in divorce if present patterns continue (who also contributes to The Upshot). The decline in divorce has several causes, including later marriages, birth control, and the increase in "love marriages," among others.
Learn more about divorce in the 1970s here:
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c. social
b. religious
d. political
The correct answer to this open question is the following.
The approximate difference in elevation between Austin and the Hill Country just to the west is about 1000 to 1,500 feet, depending on the city or location in the Texas Hill Country in Central Texas.
In this case, the elevation of Austin, the capital city of the state of Texas is 621 feet. If we compare its elevation with, let's say, Fredericksburg, that is close to Austin, Fredericksburg has an elevation of 1,685 feet. Other cities and towns that are part of the Texas Hill are Brady, Del Rio, Junction, and San Saba. These places are full of different kinds of vegetation and wildlife.