Question

CFCs were chemicals commonly used in refrigeration and as propellants in aerosol cans. In 1974, a research study discovered that CFCs were leading to a dangerous hole in the ozone layer. By the late 1980s most CFCs were banned as a result of the research.

Which statement best describes a possible way that societal decisions were impacted by the 1974 research study?

CFCs were commonly used in refrigeration.
CFCs were replaced with other products.
CFCs were causing a large hole in the ozone layer.
CFCs were the focus of a research study.

Answer 1

CFCs were replaced with other products.

Explanation: The 1974 finding that CFCs damaged the ozone led to bans and regulations by the late 1980s, prompting industry and consumers to switch to alternative chemicals and technologies.