Question

Read the excerpt from "Climate Change: An Overview.”

By the early twentieth century, carbon emissions from fossil-fuel burning reached 1 billion tons a year. Automobiles, airplanes, and domestic and agricultural energy demands all contributed to the rising trend. In the 1950s, scientists used a new generation of equipment to confirm that carbon-dioxide concentrations were doubling and that this would have the effect of increased temperatures.

What chronology is described in this excerpt?

the increase in automobile usage from the early twentieth century through the 1950s
the changes in carbon dioxide emissions from the early twentieth century through the 1950s
the development of new technologies from the early twentieth century through the 1950s
the changes in popular modes of transportation from the early twentieth century through the 1950s

Answer 1

Answer:

B.) the changes in carbon dioxide emissions from the early twentieth century through the 1950s

Explanation:

Answer 2

Answer:

This snippet provides a description of (B) the changes that occurred in carbon dioxide emissions between the early 20th century and the 1950s.

Explanation:

• The excerpt explains how rising emissions of carbon dioxide have occurred over the course of time.
• At the turn of the twentieth century, there was a significant rise in the amount of emission that was produced as a result of the fact that many forms of transportation required the burning of fossil fuels.
• Later on, a new technology that had been developed in the 1950s was used to measure this rise. This gave scientists the ability to determine the scope of the emissions and how much they contributed to the overall increase in global temperature.

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