What are supporting evidence that shows us heat can travel through a vacuum?
• Experiments in a laboratory have been performed
Satellite images show heat traveling through the space vacuum.
There are volcanic eruptions that produce lava.
Heat from the Sun reaches Earth

Which at first gave the south an edge in the civil war? a. a better-equipped army b. the invention of ironclad ships c. the drafting of slaves into the army

Discuss the role of policy analysis in policy modification. include a description of a federal agency that supports policymaking through policy analysis.

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is: