We can block light by placing obstackes in its oath, but its much more diffcult to block sound. Why?

Which issues led to the political revolts in South America

How are global issues and human geography potentially connected?

What is the estimated perimeter of an ellipse if the major axis has a length of 15 ft and minor axis has a length of 7.5 ft? round your answer to the nearest tenth. A. 36.7 ft B. 24.2 ft C. 37.3 ft D. 25.7 ft

What are the major religions practiced in China

Most of the hurricanes that affect the east coast of the United States originally form over the (1) warm waters of the Atlantic Ocean in summer (2) warm land of the southeastern United States in summer (3) cool waters of the Atlantic Ocean in spring

Why did the Mongols launch the deadly attack on Nishapur

Which latin American country is the only nation ever created as a result of a revolt by enslaved people? A. Brazil B. Chile C. Haiti D. Aragentina

Where did the big bang occur? where did the big bang occur? near the center of the milky way galaxy. near the andromeda galaxy. several billion light-years away. near the earth. throughout all space?

Convection currents in the plastic mantle are believed to cause divergence of lithospheric plates at the

Which movement is completed in a 24 hour time period? A the moon completing a revolution around Earth B the outer planets orbiting the sun C Earth completing a revolution around the sun D Earth completing a rotation on its axis