Puerto rico only has one island. true or false.

What is hydroelectric energy?

What gases escape from volcaneos

What are elliptical galaxies mostly made of?

How does erosion change earth surface?

Which of the following is not an international enviormental problem A. Air pollution B. Water pollution C. Global warming D. Overstocked fishing sites

2. What is the definition of climate?

Pieces of rock and sand settle to the bottom or sides of a river because: they are heavier than water they are lighter than water gravity is stronger in a river than on land wind blows the pieces to the bottom

Does mars have water and chemicals needed for life

Why do surface wind speeds increase toward the center of a hurricane?

2. What changes take place during physical weathering? a. Rocks are broken into smaller pieces. b. The mineralogy of previously existing rocks changes. c. Minerals crystallize as water evaporates. d. All of these changes take place.