China's population was very young because it had very high birthrates.
Explanation:
Until the 1970's, China had one of the highest birthrates in the world. The country already had huge population and it was the most populated in the world by far, but its population was still rapidly on the rise.
From this population pyramid we can see several things. The birthrates were very high, contributing to high levels of young population. The middle aged people were twice less in number than the young ones. The average lifespan was below average, contributing to small percentage of old population.
While this contributed greatly to the economic rise of China, as it had enormous labor force, the laws that were implemented in this period now have a counter effect. Namely, the government prohibited the people to have more than one child, except with special permission, which now has made a problem as the country is facing the opposite problem, and aging population.
The answer is D. The climate in that region of South America allows for dense vegetation and tropical forests to grow. That region coincides with the development of the Amazon River and therefore, with intense rains and high temperature. the temperature in that region is constant throughout the year, for that reason the plant species are perpetual blooms.
Answer:
C. constituency service and public relations
Explanation:
Looking at the given chart, we could see that Paleozoic era follows the Precambrian time. So, <u>Option C is the correct answer.</u>
More details:
Option A states that, ‘Scientists study fossils from the Jurassic period’. After analyzing the chart, we can say that this does not help to research about Paleozoic era since Jurassic period is in Mesozoic Era.
Option B states that, ‘Scientists observe index fossil records of the Mesozoic era’. Again, this does not help to research the start of Paleozoic era.
Option C states that, ‘Scientists examine fossil evidence during the Precambrian time’. Yes. Correct. Researching about things at the Precambrian time might help them to identify what would have happened before Paleozoic era.
Option D states that, ‘Scientists explore the emergence of mammals and humans in the Cenozoic era’. This does not help since this era just 1.6 million years ago. But Paleozoic is about 500 million years ago.
<span>In the autumn of 1911, revolution took place in China's interior, overthrowing the 270-year-old rule of the Qing Dynasty and establishing the Republic of China.</span>