Why do individuals testify in front of committees. What is the purpose of this testimony?

Write two paragraphs to explain how the cold war changed after the 1960s. first, identify the ways it changed during leonid brezhnev's leadership in the 1970s. then, explain how the cold war changed when ronald reagan was in office in the early 1980s. include supporting facts and details from the text in your response.

From 1990 to 2008, by what percent did the world’s most developed economies cut their greenhouse gas emissions?

During the cold war, the united states was involved in certain regional conflicts due to fears later called the domino theory, which stated which concept?