The general relationship between Gross Domestic Product (GDP) and the Human Development Index (HDI) is that they are usually "tied together", in that when one goes up so does the other. This is because countries with greater wealth usually have populations with greater life expectancies.
Answer:
B. The government is trying to clean the lakes and make their water safe for drinking again.
D. The people of China are insisting on the use of renewable energy.
These are the two sentences in the passage that talk about China's efforts to curb environmental degradation. The beginning of the passage states that China is a major pollutant, and that this has caused a lot of damage to its ecosystems. However, towards the middle part of the passage, the text discusses what things are changing in order to reduce this problem. The first strategy that is discussed is how the government is trying to clean lakes and rivers. The second one is that the population is protesting the use of fossil fuels and trying to encourage the use of renewable energy.
During the 1950s, an increase in the number of marriages and births fueled a demand for housing.
People who was born in the 1950s were known as the baby boomers. The increasing number of marrieages and births in population of post-World War II led to an increase in the demand for housing and gave rise to higher density cities.
By the 1970s, the United States economy had grown by leaps and bounds and was by far the largest economy in the world.
