College Entrance Examination Geography Figure 3 shows immigrants from a certain country. I really don’t understand this question. I’m stupid. I don’t understand many of the explanations. Please give m

College Entrance Examination Geography Figure 3 shows immigrants from a certain country. I really don’t understand this question. I’m stupid. I don’t understand many of the explanations. Please give me a detailed answer.

Question 10 seems to be option A. Read from the picture:

From 1910 to 1970, the total number of immigrants was basically the same between 100,000 and 150,000. One group's share of the total population has been declining. This shows that the total population was growing from 1910 to 1970. B.C.D was excluded because it did not meet this condition.

In the data from 1970 to 1990, we can see that both numbers have increased, indicating that the population growth rate has slowed down.

Based on chart data. In 1970, the number of immigrants was 10 million, accounting for about 5% of the total population. The total population was calculated to be 200 million (200 million); in 1990, the number of immigrants was 40 million, accounting for about 13% of the total population. , the total population was calculated to be 260 million. Therefore, the population also increased from 1970 to 1990.

Choose D for question 11 because:

If you chose A for question 10, you can directly read the picture A: In 1910, the population was nearly 100 million; in 1930, the population was about 1 30 million, an increase of 30 million from 1910 to 1930. In 1950, there were 150 million people, and the number increased by 20 million from 1930 to 1950. In 1970, the population was approximately 200 million, and the number increased by 50 million from 1950 to 1970. In 1990, the total population was 260 million, with an increase of 60 million from 1970 to 1990.